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Chinese yam
Chinese yam
Chinese yam
Chinese yam
Chinese yam
Chinese yam
Chinese yam
Dioscorea polystachya
Also known as : Cinnamon Vine
Hardiness Zones
Hardiness Zones
4 to 11
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care guide

Care Guide for Chinese yam

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Watering Care
Watering Care
Details on Watering Care Watering Care
Fertilizing Care
Fertilizing Care
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Pruning
Pruning
Deadhead (or remove) withered flowers after flowering.
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Soil Care
Soil Care
Slightly acidic
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Full sun, Partial sun
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Chinese yam
Water
Water
Every 3 weeks
Hardiness Zones
Hardiness Zones
4 to 11
Planting Time
Planting Time
Spring, Summer, Fall
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Questions About Chinese yam

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
What's the best method to water my Chinese yam?
You might want to put a garden hose at the plant base to ensure that you're promoting excellent root development. Avoid directly spraying the leaves, and know that the leaves will require more watering if they are outdoors and facing direct sunlight. You can also use bubblers that you can put on to each plant to moisten the roots. Also, use soaker hoses that can cover the entire garden or bed when adding or removing plants to push the roots deeply. Drain any excess water and wait for the soil to dry before watering. Water at ground level to prevent diseases. On a sunny day, you might want to spray the entire bush with water. Whether potted or in-ground, please remember Chinese yam prefers deep watering over light sprinkling.
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What should I do if I water Chinese yam too much/too little?
An overwatered Chinese yam can start to have leaves that turn yellow, drop off and wilt. The plant can also look dull and unhealthy, with signs of mushy stems. When they are beginning to show these signs, it's best to adjust your schedule whenever possible. The wilting can also be a sign of under watering as well. You might see that the leaves begin to turn crispy and dry while the overwatered ones will have soft wilted leaves. Check the soil when it is dry and watering is not enough, give it a full watering in time. Enough water will make the Chinese yam recover again, but the plant will still appear dry and yellow leaves after a few days due to the damaged root system. Once it return to normal, the leave yellowing will stop . Always check the moisture levels at the pot when you have the Chinese yam indoors. Avoid overwatering indoors and see if there are signs of black spots. If these are present, let the soil dry in the pot by giving it a few days of rest from watering. Overwatering can lead to root rot being present in your plant. If this is the case, you might want to transfer them into a different pot, especially if you see discolored and slimy roots. Always prevent root rot as much as possible, and don't let the soil become too soggy. You should dig a little deeper when you plant your Chinese yam outdoors. When you check with your fingers and notice that the soil is too dry, it could mean underwatering. Adequate watering is required to help the plant recover.
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How often should I water my Chinese yam?
The Chinese yam likes deep and infrequent watering. You would want to soak them in a gallon of water each time, especially when they are planted in pots. The water storage of flower pots is limited and the soil will dry out faster. Watering is required every 3 to 5 days when living in a cold region. Water it early in the morning when the soil is dry, outdoors or indoors. You can also determine if watering is needed by checking the soil inside. When the top 2-3 inches of soil is dry, it is time to give the plant a full watering. During hot days, you may need to check the moisture daily, as the heat can quickly dry out the soil in the pot. Irrigation of the soil is also required if you have a garden. When you live in a hot climate, you might want to water once a week. Only water when you notice that about 2 to 3 inches of soil become too dry outdoors or indoors. Consider the amount of rainwater on the plant and ensure not to add to it to prevent root rot.You may not need additional watering of the plants if there is a lot of rainfall.Chinese yam generally grows during spring and fall. When they are outdoors, you need to add mulch about 3 to 4 inches deep to conserve more water. You need to water the plants more frequently in sandy soil because this type tends to drain faster. However, with the clay one, you need to water this less frequently where you could go for 2-3 days to dry the plant and not develop any root rot. You could mark the date on the calendar whenever you water and when you notice that the leaves are starting to droop. This can mean that you might be a day late.
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How much water do I need to give my Chinese yam?
The Chinese yam generally needs about a gallon of water each schedule,With the potted plants, you might want to water them deeply until you see that the water is dripping at the bottom of the pot. Then, wait for the soil to dry before watering them again. You can use a water calculator or a moisture meter to determine the amount you've given to your plant in a week. Provide plenty of water, especially in the flowering period, but let the moisture evaporate afterwards to prevent root rot. If Chinese yam is planted outdoor with adequate rainfall, it may not need additional watering. When Chinese yam is young or newly planted, make sure it gets 1-2 inches of rain per week. As Chinese yam continues to grow, it can survive entirely on rainfall. Only when the weather is too hot, or when there is no rainfall at all for 2-3 weeks, then consider giving Chinese yam a full watering during the cooler moment of the day to prevent the plant from suffering from high heat damage. Additional watering will be required during persistent dry spells.
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Should I adjust the watering frequency for my Chinese yam according to different seasons or climates?
The Chinese yam needs outdoors come from rain, with only persistent dry weather requiring watering. Throughout the spring and fall growing seasons, the soil needs to be kept moist but not soggy, and alternating dry and moist soil conditions will allow the Chinese yam to grow well. Throughout the summer, hot weather can cause water to evaporate too quickly, and if there is a lack of rainfall, you will need to water more frequently and extra to keep it moist. Usually, the Chinese yam will need less water during the winter. Since the Chinese yam will drop their leaves and go dormant, you can put them into a well-draining but moisture-retentive soil mixture like the terracotta to help the water evaporate quicker. Once your Chinese yam growing outdoors begins to leaf out and go dormant, you can skip watering altogether and in most cases Chinese yam can rely on the fall and winter rains to survive the entire dormant period. After the spring, you can cultivate your Chinese yam and encourage it to grow and bloom when the temperature becomes warmer.This plant is not generally a fan of ponding or drought when flowering. You must ensure that the drainage is good at all times, especially during the winter. When the plant is in a pot, the plant has limited root growth. Keep them well-watered, especially if they are planted in pots during summer. They don't like cold and wet roots, so provide adequate drainage, especially if they are still growing. It's always best to water your Chinese yam’s diligently. Get the entire root system into a deep soak at least once or twice a week, depending on the weather. It's best to avoid shallow sprinkles that reach the leaves since they generally encourage the growth of fungi and don't reach deep into the roots. Don't allow the Chinese yam’s to dry out completely in the fall or winter, even if they are already dormancy. Don't drown the plants because they generally don't like sitting in water for too long. They can die during winter if the soil does not drain well. Also, apply mulch whenever possible to reduce stress, conserve water, and encourage healthy blooms.
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What should I be careful with when I water my Chinese yam in different seasons, climates, or during different growing periods?
If planting in the ground, Chinese yam mostly relies on rain. However, if there is no rainfall for 2-3 weeks, you may need to give proper consideration to giving the plants a deep watering. If watering Chinese yam in summer, you should try to do it in the morning. A large temperature difference between the water temperature and the root system can stress the roots. You need to avoid watering the bushes when it's too hot outside. Start mulching them during the spring when the ground is not too cold. The age of the plants matter. Lack of water is one of the most common reasons the newly planted ones fail to grow. After they are established, you need to ease off the watering schedule. Reduce watering them during the fall and winter, especially if they have a water-retaining material in the soil. The dry winds in winter can dry them out, and the newly planted ones can be at risk of drought during windy winter, summer, and fall. Windy seasons mean that there's more watering required. The ones planted in the pot tend to dry out faster, so they need more watering. Once you see that they bloom less, the leaves begin to dry up. Potted plants are relatively complex to water and fluctuate in frequency. Always be careful that the pot-planted plant don't sit in the water. Avoid putting them in containers with saucers, bowls, and trays. Too much watering in the fall can make the foliage look mottled or yellowish. It's always a good idea to prevent overwatering them regardless of the current climate or season that you might have. During the months when Chinese yam begins to flower, you might want to increase the watering frequency but give it a rest once they are fully grown. Give them an adequate amount of water once every 3 to 5 days but don't give them regular schedules. Make sure the soil is dry by sticking your finger in the pot, or use a moisture meter if you're unsure if it's the right time. Too much root rot can cause them to die, so be careful not to overwater or underwater regardless of the climate or season you have in your area.
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Why is watering my Chinese yam important?
Watering the Chinese yam helps transport the needed nutrients from the soil to the rest of the plant. The moisture will keep this species healthy if you know how much water to give. The watering requirements will depend on the weather in your area and the plant's soil. The Chinese yam thrives on moist soil, but they can't generally tolerate waterlogging. Ensure to provide enough mulch when planted on the ground and never fall into the trap of watering too little. They enjoy a full can of watering where the water should be moist at the base when they are planted in a pot to get the best blooms. If they are grown as foliage, you need to water them up to a depth of 10 to 20 inches so they will continue to grow. If it's raining, refrain from watering and let them get the nutrients they need from the rainwater.
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Key Facts About Chinese yam

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Attributes of Chinese yam

Lifespan
Perennial
Plant Type
Vine
Planting Time
Spring, Summer, Fall
Bloom Time
Summer
Harvest Time
Fall
Plant Height
2.5 m
Spread
1.5 m
Leaf Color
Green
Flower Size
28 cm
Flower Color
White
Yellow
Green
Brown
Fruit Color
Green
Stem Color
Green
Purple
Leaf type
Deciduous
Ideal Temperature
5 - 38 ℃
Growth Season
Summer
Growth Rate
Rapid

Scientific Classification of Chinese yam

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Common Pests & Diseases About Chinese yam

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Common issues for Chinese yam based on 10 million real cases
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Wounds
Wounds in Chinese yam are physical damages that compromise plant integrity, leading to potential secondary infections. These lesions can significantly affect photosynthesis, growth, and tuber yield.
Underwatering
Underwatering Underwatering
Underwatering
Leaves may wilt for a variety of reasons.
Solutions: The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with. Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock. In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
Longhorn beetles
Longhorn beetles Longhorn beetles
Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Solutions: Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control. Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees. Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree. Contact an arborist for best control practices regarding infected trees. To properly control longhorn beetles, all host plants in a given area must be treated. Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
Nutrient deficiencies
Nutrient deficiencies Nutrient deficiencies
Nutrient deficiencies
A lack of nutrients will cause a widespread yellowing of the leaves. The yellowing may begin at the base or top of the plant.
Solutions: There are several easy ways to remedy the nutrient deficiencies in soils. Use a water-soluble fertilizer. Fertilizers will include most or all of the macro and micro-nutrients the plants need to thrive. Adding some fertilizer to the soil will make those nutrients available and can combat deficiencies. Regularly apply organic fertilizer pellets. Organic fertilizers such as animal manures and bonemeal can supply plants with all the nutrients that they need to grow strong and healthy. Apply compost. Though not as finely tuned as artificial fertilizer, compost can nevertheless be rich in important nutrients and should be applied to the soil regularly. Apply nutrients via foliar application. In addition to supplementing the soil with nutrients, foliar fertilizer can be applied directly to the plant's leaves. Nutrients offered via foliar application are often taken up even quicker than those put in the soil, so the foliar application can be great for swiftly addressing specific deficiencies.
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Wounds
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Wounds Disease on Chinese yam?
What is Wounds Disease on Chinese yam?
Wounds in Chinese yam are physical damages that compromise plant integrity, leading to potential secondary infections. These lesions can significantly affect photosynthesis, growth, and tuber yield.
Symptom Analysis
Symptom Analysis
On Chinese yam, wounds are evidenced by breaks or lesions on leaves, stems, and tubers. They may exhibit callusing, oozing sap, or darkening tissues around the affected areas.
What Causes Wounds Disease on Chinese yam?
What Causes Wounds Disease on Chinese yam?
1
Physical injury
Caused by mechanical damage from tools, animals, or environmental factors like hail.
2
Pest damage
Insects or other pests feeding on Chinese yam can create wounds.
3
Improper handling
During cultivation or harvest, rough handling can cause wounds.
How to Treat Wounds Disease on Chinese yam?
How to Treat Wounds Disease on Chinese yam?
1
Non pesticide
Sanitation: Remove and discard affected plant parts to prevent infection spread.

Wound care: Protect the wound with clean horticultural paste to promote healing.
2
Pesticide
Fungicide application: Apply appropriate fungicides if secondary fungal infections are identified.

Insecticide treatment: Use insecticides if wounds are due to pest infestation.
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Underwatering
plant poor
Underwatering
Leaves may wilt for a variety of reasons.
Overview
Overview
Underwatering plants is one of the quickest ways to kill them. This is something that most gardeners are well aware of. Unfortunately, knowing exactly how much water a plant needs can be tricky, especially considering that underwatering and overwatering present similar symptoms in plants.
Therefore, it’s important to be vigilant and attentive to each plants’ individual needs.
Symptom Analysis
Symptom Analysis
As mentioned earlier, overwatering and underwatering present similar symptoms in plants. These symptoms include poor growth, wilted leaves, defoliation, and brown leaf tips or margins. Ultimately, both underwatering and overwatering can lead to the death of a plant.
The easiest way to determine whether a plant has too much water or too little is to look at the leaves. If underwatering is the culprit, the leaves will look brown and crunchy, while if it’s overwatering, they will appear yellow or a pale green in color.
When this issue first begins, there may be no noticeable symptoms at all, particularly in hardy or drought-tolerant plants. However, they will begin to wilt once they start suffering from a lack of water. The edges of the plant’s leaves will become brown or curled. Soil pulling away from the edges of the planter is a telltale sign, or a crispy, brittle stem.
Prolonged underwatering can cause a plant’s growth to become stunted. The leaves might drop and the plant can be more susceptible to pest infestations, too.
Disease Cause
Disease Cause
Underwatering is caused by, quite simply, not watering plants often or deeply enough. There is a heightened risk of underwatering if any of these situations apply:
  • Extreme heat and dry weather (when growing outdoors)
  • Grow lights or indoor lighting that is too bright or intense for the type of plant
  • Using fast-draining growing media such as sand
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Longhorn beetles
plant poor
Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Overview
Overview
Longhorn beetles are characterized by extremely long antennae which are often as long as, or longer, than the beetle's body. Adult longhorn beetles vary in size, shape, and coloration, depending upon the species. They may be 6 to 76 mm long. The larvae are worm-like with a wrinkled, white to yellowish body and a brown head.
Longhorn beetles are active throughout the year, but adults are most active in the summer and fall. Larvae feed on wood throughout the year.
Both larvae and adults feed on woody tissue. Some of the most susceptible species include ash, birch, elm, poplar, and willow.
If left untreated, longhorn beetles can kill trees.
Symptom Analysis
Symptom Analysis
Longhorn beetles are attracted to wounded, dying, or freshly-cut hardwood trees. Adults lay their eggs in the spring, summer, and fall on the bark of greenwood. There may be sap around egg-laying sites.
Once the eggs hatch, larvae called round-headed borers burrow into the trunk to feed. They may tunnel for one to three years depending on the wood's nutritional content. As the larvae feed, they release sawdust-like frass at the base of the tree.
Eventually, the larvae turn into pupae and then adults. When the adults emerge, they leave 1 cm holes in the bark on their way out. Adults feed on leaves, bark, and shoots of trees before laying eggs.
After a few years of being fed upon by longhorn beetles, a tree will begin losing leaves. Eventually, it will die.
Solutions
Solutions
Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control.
Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees.
  • Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree.
  • Contact an arborist for best control practices regarding infected trees.
  • To properly control longhorn beetles, all host plants in a given area must be treated.
  • Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
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Nutrient deficiencies
plant poor
Nutrient deficiencies
A lack of nutrients will cause a widespread yellowing of the leaves. The yellowing may begin at the base or top of the plant.
Overview
Overview
Nutrient deficiencies can be seen in many different ways on plants. Basically, the lack of nutrients will inhibit plant growth, produce weak stems and leaves, and leave plants open to infection from pests and diseases. Plants use the nutrients from the soil to help them with photosynthesis. This, in turn, produces healthy plant growth. Plants that lack adequate amounts of nutrients will look lackluster and unhealthy. Eventually, if this is not addressed, it will cause the plants to die. The most important nutrients that plants need are nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Additionally, plants require small amounts of micronutrients such as iron, boron, manganese, zinc, copper, and molybdenum.
Symptom Analysis
Symptom Analysis
A common sign that plants are experiencing nutrient deficiencies is the yellowing of leaves. This may be an overall yellowing or leaves that are yellow but still have green veins. These leaves will eventually brown off and die.
Another sign is the loss of plant vigor. The plants may not be growing as well as they should or their growth may be stunted.
Below are some common symptoms that appear when plants are lacking in nutrients.
Nitrogen (N): Inner, older leaves yellow first. If the deficiency is severe, yellowing progresses outward to newer growth.
Potassium (K): Leaf edges may turn brown and crinkly, with a yellowing layer forming just inside of the edge. Older leaves tend to be impacted first.
Phosphorus (P): Lack of vigorous growth. Plants will appear stunted.
Zinc (Zn): Yellowing tends to occur first at the base of the leaf.
Copper (Cu): Newer leaves begin to yellow first, with older leaves yellowing only if the deficiency becomes severe.
Boron (B): Newer leaves are impacted first. Foliage may also become particularly brittle in cases of boron deficiency.
Disease Cause
Disease Cause
There are several factors that can lead to nutrient deficiencies, a situation where plants are not receiving the nutrients that they need. This could be because they are planted in nutrient-deficient soils, or that the soil's pH is too high or low. Incorrect soil pH can lock up certain nutrients, thus making them unavailable to plants. Lack of soil moisture can also be a problem, because plants need water to be able to absorb the nutrients from the soil.
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distribution

Distribution of Chinese yam

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Habitat of Chinese yam

Disturbed areas, meadows, fields
Northern Hemisphere
South Hemisphere

Distribution Map of Chinese yam

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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More Info on Chinese Yam Growth and Care

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Basic Care Guide
Common Pests & Diseases
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Lighting
Full sun
Chinese yam thrives in locations that receive an abundance of daily sun exposure. Its growth and health can be impacted by sun exposure, as it enjoys the intensity of full day sun but can also manage in areas with some shadow. Excessive shadow or lack of ample light can lead to suboptimal growth. Considering its origin, it is accustomed to substantial sunlight exposure.
Best Sunlight Practices
Transplant
3-4 feet
Transplant chinese yam in the vigor-renewing period of mid to late spring or early summer for robust growth. Choose a sun-kissed, well-drained spot. Tip: Gradual acclimatization helps chinese yam thrive post-transplant.
Transplant Techniques
Temperature
-25 - 43 ℃
Chinese yam is indigenous to areas where the temperature ranges from 41 to 100.4 °F (5 to 38 ℃). This plant thrives in moderate climates. Seasonal adjustments in care should consider these temperature requirements for optimal growth.
Temp for Healthy Growth
Pruning
Early spring, Late winter
This perennial tuber-producing vine is best pruned in early spring or late winter. For chinese yam, key pruning techniques include cutting back any dead or diseased stems to maintain health, and removing any wayward vines that may inhibit controlled growth. Pruning should be done to manage the plant's vigorous growth habit, which can be invasive. Regular pruning helps ensure good air circulation, reduces disease risk, and encourages a more manageable growth pattern for cultivation purposes.
Pruning techniques
Propagation
Spring
Chinese yam is cultivated for its edible tubers which play a crucial role in propagation. A practical tip for gardeners is to plant the tubers directly into the soil at a suitable depth. It's important to consider that the tubers should be healthy and free from any signs of disease to ensure successful propagation. Precise spacing is also critical to give each tuber sufficient room to develop. With proper care and favorable conditions, new growth can be expected.
Propagation Techniques
Wounds
Wounds in Chinese yam are physical damages that compromise plant integrity, leading to potential secondary infections. These lesions can significantly affect photosynthesis, growth, and tuber yield.
Read More
Spots
Spots disease is a common fungal illness in Chinese yam that leads to blotchy, discolored patches on the leaves, stems and tubers. The impact is primarily cosmetic, but can severely weaken the plant, reducing its yield and lifespan.
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Leaf drooping
Leaf drooping in Chinese yam is a condition where the plant's leaves sag or wilt, commonly indicating water stress or disease. This physiological response hinders photosynthesis and can lead to plant decline if unresolved.
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Dark spots
Dark spots are lesions on Chinese yam caused by fungal infection or environmental stress, significantly affecting tuber marketability and plant vitality. It is a common concern for Chinese yam growers.
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Yellow edges
Yellow edges disease is a plant disease that affects Chinese yam, causing its leaves to develop yellow edges. If left untreated, the disease can cause significant losses, reducing yield and affecting the quality of tubers.
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Leaf wilting
Leaf wilting in Chinese yam is a condition that results in the drooping and dehydration of leaves, potentially leading to reduced vigor and yield. Early diagnosis and treatment are essential for plant health management.
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Leaf tip withering
Leaf tip withering in Chinese yam is a condition leading to leaf desiccation, impaired growth, and potential crop loss. It involves the progressive death of leaf tips, which can spread if untreated.
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Leaf blotch
Leaf blotch is a fungal infection that can cause significant damage to Chinese yam, marked by irregular brown spots on leaves, which can lead to reduced vigor and lower tuber yields.
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Dark blotch
Dark blotch is a fungal disease, impacting Chinese yam by causing characteristic brown to black spots on its tubers. This disease leads to poor plant vigor, reduced yield and can be lethal if not treated promptly.
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Leaf yellowing
Leaf yellowing is a common symptom of distress in Chinese yam, often indicating nutrient deficiencies, disease, or poor environmental conditions, which can reduce photosynthesis and plant vigor, potentially leading to reduced yields.
Read More
Black mold
Black mold is a fungal disease causing dark discoloration and rot in Chinese yam. This disease impacts the plant's vitality and crop yield, leading to economic loss and reduced produce quality.
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Whole leaf withering
Whole leaf withering is a critical disease that affects Chinese yam, leading to leaf decay and potential plant death, thus impacting crop yield and quality.
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Feng shui direction
Northwest
The chinese yam is ambivalently linked to the Northwest direction in Feng Shui theory. This is due to its flexible nature and adaptability that is often related to the aspects of the Northwest, such as journeying and helpful people. Remember, the essence of Feng Shui is balance and harmony so it might be worth considering the chinese yam for your Northwest space.
Fengshui Details
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Plants Related to Chinese yam

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Basket Grass
Basket Grass
Basket Grass (Oplismenus hirtellus) is an invasive plant species native to the United States. Basket Grass flowers appear from winter to summer. This species grows in dense patches on every continent except Antarctica.
Grey willow
Grey willow
Grey willow (Salix cinerea) is a deciduous tree that will grow from 5 to 10 m tall. It is considered invasive. Produces catkin-like flowers in spring before leaves return in spring. Seeds ripen from spring to summer and require pollination by bees. Mature fluffy seeds are dispersed by wind. Prefers moist well-drained soil.
Oyster plant
Oyster plant
Native to Belize, Guatemala, and Mexico, the oyster plant is widely cultivated as a garden plant and naturalized in the southeastern United States. Though there is no ecological damage observed, oyster plant is considered to be invasive in Florida and Louisiana due to its amount.
Cuman ragweed
Cuman ragweed
Cuman ragweed (Ambrosia psilostachya) is a flowering perennial plant that grows along roadsides and fields. Cuman ragweed grows best in dry soil. Many people have allergic reactions to this plant and its blooms.
Pink bauhinia
Pink bauhinia
Pink bauhinia (Bauhinia monandra) is a deciduous tree that will grow to 7 m tall. It blooms from spring to fall with clusters of pinkish white orchid-like flowers with streaks of magenta. Blossoms attract butterflies. The leaves are shaped like butterfly wings and it is sometimes referred to as a butterfly tree. Grows in full sun with low moisture.
Rutabaga
Rutabaga
Rutabaga is a well-known root vegetable in many countries. All parts of the plant are edible, but the fleshy root is commonly cooked and enjoyed in a variety of ways. Baked, steamed, mashed, and boiled are just a few of the ways to enjoy rutabagas. This vegetable is a filling and gives substance to soups and stews, or provides a hearty side dish.
Poison ivy
Poison ivy
In pop culture, poison ivy is a symbol of an obnoxious weed because, despite its unthreatening looks, it gives a highly unpleasant contact rash to the unfortunate person who touches it. Still, it is commonly eaten by many animals, and the seeds are a favorite with birds. The leaves turn bright red in fall. Its sister species, Western poison ivy (Toxicodendron rydbergii), is not considered to be invasive in the United States, but is noxious in Australia and New Zealand.
Pokeweed
Pokeweed
Although its berries look juicy and tempting, the fruits and the root of pokeweed are toxic and should not be eaten. Pokeweed is considered a pest species by farmers but is nevertheless often grown as an ornamental plant. Its berries can be made into pokeberry ink as well.
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Chinese yam
Chinese yam
Chinese yam
Chinese yam
Chinese yam
Chinese yam
Chinese yam
Dioscorea polystachya
Also known as: Cinnamon Vine
Hardiness Zones
Hardiness Zones
4 to 11
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Questions About Chinese yam

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Key Facts About Chinese yam

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Attributes of Chinese yam

Lifespan
Perennial
Plant Type
Vine
Planting Time
Spring, Summer, Fall
Bloom Time
Summer
Harvest Time
Fall
Plant Height
2.5 m
Spread
1.5 m
Leaf Color
Green
Flower Size
28 cm
Flower Color
White
Yellow
Green
Brown
Fruit Color
Green
Stem Color
Green
Purple
Leaf type
Deciduous
Ideal Temperature
5 - 38 ℃
Growth Season
Summer
Growth Rate
Rapid
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Scientific Classification of Chinese yam

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Common Pests & Diseases About Chinese yam

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Common issues for Chinese yam based on 10 million real cases
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Wounds
Wounds in Chinese yam are physical damages that compromise plant integrity, leading to potential secondary infections. These lesions can significantly affect photosynthesis, growth, and tuber yield.
Learn More About the Wounds more
Underwatering
Underwatering Underwatering Underwatering
Leaves may wilt for a variety of reasons.
Solutions: The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with. Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock. In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
Learn More About the Underwatering more
Longhorn beetles
Longhorn beetles Longhorn beetles Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Solutions: Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control. Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees. Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree. Contact an arborist for best control practices regarding infected trees. To properly control longhorn beetles, all host plants in a given area must be treated. Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
Learn More About the Longhorn beetles more
Nutrient deficiencies
Nutrient deficiencies Nutrient deficiencies Nutrient deficiencies
A lack of nutrients will cause a widespread yellowing of the leaves. The yellowing may begin at the base or top of the plant.
Solutions: There are several easy ways to remedy the nutrient deficiencies in soils. Use a water-soluble fertilizer. Fertilizers will include most or all of the macro and micro-nutrients the plants need to thrive. Adding some fertilizer to the soil will make those nutrients available and can combat deficiencies. Regularly apply organic fertilizer pellets. Organic fertilizers such as animal manures and bonemeal can supply plants with all the nutrients that they need to grow strong and healthy. Apply compost. Though not as finely tuned as artificial fertilizer, compost can nevertheless be rich in important nutrients and should be applied to the soil regularly. Apply nutrients via foliar application. In addition to supplementing the soil with nutrients, foliar fertilizer can be applied directly to the plant's leaves. Nutrients offered via foliar application are often taken up even quicker than those put in the soil, so the foliar application can be great for swiftly addressing specific deficiencies.
Learn More About the Nutrient deficiencies more
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Wounds
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Wounds Disease on Chinese yam?
What is Wounds Disease on Chinese yam?
Wounds in Chinese yam are physical damages that compromise plant integrity, leading to potential secondary infections. These lesions can significantly affect photosynthesis, growth, and tuber yield.
Symptom Analysis
Symptom Analysis
On Chinese yam, wounds are evidenced by breaks or lesions on leaves, stems, and tubers. They may exhibit callusing, oozing sap, or darkening tissues around the affected areas.
What Causes Wounds Disease on Chinese yam?
What Causes Wounds Disease on Chinese yam?
1
Physical injury
Caused by mechanical damage from tools, animals, or environmental factors like hail.
2
Pest damage
Insects or other pests feeding on Chinese yam can create wounds.
3
Improper handling
During cultivation or harvest, rough handling can cause wounds.
How to Treat Wounds Disease on Chinese yam?
How to Treat Wounds Disease on Chinese yam?
1
Non pesticide
Sanitation: Remove and discard affected plant parts to prevent infection spread.

Wound care: Protect the wound with clean horticultural paste to promote healing.
2
Pesticide
Fungicide application: Apply appropriate fungicides if secondary fungal infections are identified.

Insecticide treatment: Use insecticides if wounds are due to pest infestation.
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Underwatering
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Underwatering
Leaves may wilt for a variety of reasons.
Overview
Overview
Underwatering plants is one of the quickest ways to kill them. This is something that most gardeners are well aware of. Unfortunately, knowing exactly how much water a plant needs can be tricky, especially considering that underwatering and overwatering present similar symptoms in plants.
Therefore, it’s important to be vigilant and attentive to each plants’ individual needs.
Symptom Analysis
Symptom Analysis
As mentioned earlier, overwatering and underwatering present similar symptoms in plants. These symptoms include poor growth, wilted leaves, defoliation, and brown leaf tips or margins. Ultimately, both underwatering and overwatering can lead to the death of a plant.
The easiest way to determine whether a plant has too much water or too little is to look at the leaves. If underwatering is the culprit, the leaves will look brown and crunchy, while if it’s overwatering, they will appear yellow or a pale green in color.
When this issue first begins, there may be no noticeable symptoms at all, particularly in hardy or drought-tolerant plants. However, they will begin to wilt once they start suffering from a lack of water. The edges of the plant’s leaves will become brown or curled. Soil pulling away from the edges of the planter is a telltale sign, or a crispy, brittle stem.
Prolonged underwatering can cause a plant’s growth to become stunted. The leaves might drop and the plant can be more susceptible to pest infestations, too.
Disease Cause
Disease Cause
Underwatering is caused by, quite simply, not watering plants often or deeply enough. There is a heightened risk of underwatering if any of these situations apply:
  • Extreme heat and dry weather (when growing outdoors)
  • Grow lights or indoor lighting that is too bright or intense for the type of plant
  • Using fast-draining growing media such as sand
Solutions
Solutions
The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with.
Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock.
In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
Prevention
Prevention
Always check the soil before watering. If the top inch of soil feels moist, though not wet, the watering is perfect. If it’s dry, water it immediately. If it feels soggy, you avoid watering until it dries out a bit more.
Also, make sure the lighting is sufficient for the species. Plants grow faster and need more water when there is intense light or lots of heat. Being aware of these conditions and modifying them, if possible, is a good way to prevent underwatering. Many container plants are potted in soil mixtures mean to be well-draining. Adding materials that retain moisture, like compost or peat moss, can also prevent these symptoms.
Other tips to prevent underwatering include:
  • Choose pots with adequately-sized drainage holes
  • Avoid warm temperatures
  • Use large pots with additional soil (these take longer to dry out)
  • Avoid terracotta pots, which lose water quickly
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Longhorn beetles
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Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Overview
Overview
Longhorn beetles are characterized by extremely long antennae which are often as long as, or longer, than the beetle's body. Adult longhorn beetles vary in size, shape, and coloration, depending upon the species. They may be 6 to 76 mm long. The larvae are worm-like with a wrinkled, white to yellowish body and a brown head.
Longhorn beetles are active throughout the year, but adults are most active in the summer and fall. Larvae feed on wood throughout the year.
Both larvae and adults feed on woody tissue. Some of the most susceptible species include ash, birch, elm, poplar, and willow.
If left untreated, longhorn beetles can kill trees.
Symptom Analysis
Symptom Analysis
Longhorn beetles are attracted to wounded, dying, or freshly-cut hardwood trees. Adults lay their eggs in the spring, summer, and fall on the bark of greenwood. There may be sap around egg-laying sites.
Once the eggs hatch, larvae called round-headed borers burrow into the trunk to feed. They may tunnel for one to three years depending on the wood's nutritional content. As the larvae feed, they release sawdust-like frass at the base of the tree.
Eventually, the larvae turn into pupae and then adults. When the adults emerge, they leave 1 cm holes in the bark on their way out. Adults feed on leaves, bark, and shoots of trees before laying eggs.
After a few years of being fed upon by longhorn beetles, a tree will begin losing leaves. Eventually, it will die.
Solutions
Solutions
Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control.
Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees.
  • Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree.
  • Contact an arborist for best control practices regarding infected trees.
  • To properly control longhorn beetles, all host plants in a given area must be treated.
  • Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
Prevention
Prevention
  • Keeping trees healthy, uninjured, and unstressed will help prevent beetle infestation. Water trees appropriately, giving neither too much nor too little.
  • Check with local tree companies about which tree species have fewer problems.
  • Avoid moving firewood as this can introduce exotic longhorn beetles.
  • Routine spraying of persistent, broad-spectrum insecticides will help prevent re-infestation of previously affected trees or infestation of unaffected trees.
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Nutrient deficiencies
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Nutrient deficiencies
A lack of nutrients will cause a widespread yellowing of the leaves. The yellowing may begin at the base or top of the plant.
Overview
Overview
Nutrient deficiencies can be seen in many different ways on plants. Basically, the lack of nutrients will inhibit plant growth, produce weak stems and leaves, and leave plants open to infection from pests and diseases. Plants use the nutrients from the soil to help them with photosynthesis. This, in turn, produces healthy plant growth. Plants that lack adequate amounts of nutrients will look lackluster and unhealthy. Eventually, if this is not addressed, it will cause the plants to die. The most important nutrients that plants need are nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Additionally, plants require small amounts of micronutrients such as iron, boron, manganese, zinc, copper, and molybdenum.
Symptom Analysis
Symptom Analysis
A common sign that plants are experiencing nutrient deficiencies is the yellowing of leaves. This may be an overall yellowing or leaves that are yellow but still have green veins. These leaves will eventually brown off and die.
Another sign is the loss of plant vigor. The plants may not be growing as well as they should or their growth may be stunted.
Below are some common symptoms that appear when plants are lacking in nutrients.
Nitrogen (N): Inner, older leaves yellow first. If the deficiency is severe, yellowing progresses outward to newer growth.
Potassium (K): Leaf edges may turn brown and crinkly, with a yellowing layer forming just inside of the edge. Older leaves tend to be impacted first.
Phosphorus (P): Lack of vigorous growth. Plants will appear stunted.
Zinc (Zn): Yellowing tends to occur first at the base of the leaf.
Copper (Cu): Newer leaves begin to yellow first, with older leaves yellowing only if the deficiency becomes severe.
Boron (B): Newer leaves are impacted first. Foliage may also become particularly brittle in cases of boron deficiency.
Disease Cause
Disease Cause
There are several factors that can lead to nutrient deficiencies, a situation where plants are not receiving the nutrients that they need. This could be because they are planted in nutrient-deficient soils, or that the soil's pH is too high or low. Incorrect soil pH can lock up certain nutrients, thus making them unavailable to plants. Lack of soil moisture can also be a problem, because plants need water to be able to absorb the nutrients from the soil.
Solutions
Solutions
There are several easy ways to remedy the nutrient deficiencies in soils.
  1. Use a water-soluble fertilizer. Fertilizers will include most or all of the macro and micro-nutrients the plants need to thrive. Adding some fertilizer to the soil will make those nutrients available and can combat deficiencies.
  2. Regularly apply organic fertilizer pellets. Organic fertilizers such as animal manures and bonemeal can supply plants with all the nutrients that they need to grow strong and healthy.
  3. Apply compost. Though not as finely tuned as artificial fertilizer, compost can nevertheless be rich in important nutrients and should be applied to the soil regularly.
  4. Apply nutrients via foliar application. In addition to supplementing the soil with nutrients, foliar fertilizer can be applied directly to the plant's leaves. Nutrients offered via foliar application are often taken up even quicker than those put in the soil, so the foliar application can be great for swiftly addressing specific deficiencies.
Prevention
Prevention
There are several easy ways to prevent nutrient deficiencies in plants.
  1. Regular fertilizing. Regular addition of fertilizer to the soil is one of the simplest and most effective ways to prevent deficiencies.
  2. Proper watering. Both over and under watering can adversely impact a plant's roots, which in turn makes it harder for them to properly take up nutrients.
  3. Testing the soil's pH. A soil's acidity or alkalinity will impact the degree to which certain nutrients are available to be taken up by plants. Knowing the soil's pH means it can be amended to suit the needs of the individual plants.
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distribution

Distribution of Chinese yam

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Habitat of Chinese yam

Disturbed areas, meadows, fields
Northern Hemisphere
South Hemisphere

Distribution Map of Chinese yam

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
care_scenes

More Info on Chinese Yam Growth and Care

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Basic Care Guide
Common Pests & Diseases
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Wounds
Wounds in Chinese yam are physical damages that compromise plant integrity, leading to potential secondary infections. These lesions can significantly affect photosynthesis, growth, and tuber yield.
 detail
Spots
Spots disease is a common fungal illness in Chinese yam that leads to blotchy, discolored patches on the leaves, stems and tubers. The impact is primarily cosmetic, but can severely weaken the plant, reducing its yield and lifespan.
 detail
Leaf drooping
Leaf drooping in Chinese yam is a condition where the plant's leaves sag or wilt, commonly indicating water stress or disease. This physiological response hinders photosynthesis and can lead to plant decline if unresolved.
 detail
Dark spots
Dark spots are lesions on Chinese yam caused by fungal infection or environmental stress, significantly affecting tuber marketability and plant vitality. It is a common concern for Chinese yam growers.
 detail
Yellow edges
Yellow edges disease is a plant disease that affects Chinese yam, causing its leaves to develop yellow edges. If left untreated, the disease can cause significant losses, reducing yield and affecting the quality of tubers.
 detail
Leaf wilting
Leaf wilting in Chinese yam is a condition that results in the drooping and dehydration of leaves, potentially leading to reduced vigor and yield. Early diagnosis and treatment are essential for plant health management.
 detail
Leaf tip withering
Leaf tip withering in Chinese yam is a condition leading to leaf desiccation, impaired growth, and potential crop loss. It involves the progressive death of leaf tips, which can spread if untreated.
 detail
Leaf blotch
Leaf blotch is a fungal infection that can cause significant damage to Chinese yam, marked by irregular brown spots on leaves, which can lead to reduced vigor and lower tuber yields.
 detail
Dark blotch
Dark blotch is a fungal disease, impacting Chinese yam by causing characteristic brown to black spots on its tubers. This disease leads to poor plant vigor, reduced yield and can be lethal if not treated promptly.
 detail
Leaf yellowing
Leaf yellowing is a common symptom of distress in Chinese yam, often indicating nutrient deficiencies, disease, or poor environmental conditions, which can reduce photosynthesis and plant vigor, potentially leading to reduced yields.
 detail
Black mold
Black mold is a fungal disease causing dark discoloration and rot in Chinese yam. This disease impacts the plant's vitality and crop yield, leading to economic loss and reduced produce quality.
 detail
Whole leaf withering
Whole leaf withering is a critical disease that affects Chinese yam, leading to leaf decay and potential plant death, thus impacting crop yield and quality.
 detail
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Plants Related to Chinese yam

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Lighting
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Indoor
Outdoor
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Requirements
Full sun
Ideal
Above 6 hours sunlight
Partial sun
Tolerance
About 3-6 hours sunlight
Watch how sunlight gracefully moves through your garden, and choose spots that provide the perfect balance of light and shade for your plants, ensuring their happiness.
Essentials
Chinese yam thrives in locations that receive an abundance of daily sun exposure. Its growth and health can be impacted by sun exposure, as it enjoys the intensity of full day sun but can also manage in areas with some shadow. Excessive shadow or lack of ample light can lead to suboptimal growth. Considering its origin, it is accustomed to substantial sunlight exposure.
Preferred
Tolerable
Unsuitable
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Artificial lighting
Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
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Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.
Important Symptoms
Symptoms of Insufficient Light in %s
Chinese yam thrives in full sunlight and is commonly cultivated outdoors. When grown indoors with limited light, it may exhibit subtle symptoms of light deficiency that can easily go unnoticed.
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Small leaves
New leaves may grow smaller in size compared to the previous ones once they have matured.
Leggy or sparse growth
The spaces between leaves or stems of your Chinese yam may become longer, resulting in a thin and stretched-out appearance. This can make the plant look sparse and weak, and it may easily break or lean due to its own weight.
Faster leaf drop
When plants are exposed to low light conditions, they tend to shed older leaves early to conserve resources. Within a limited time, these resources can be utilized to grow new leaves until the plant's energy reserves are depleted.
Slower or no new growth
Chinese yam enters a survival mode when light conditions are poor, which leads to a halt in leaf production. As a result, the plant's growth becomes delayed or stops altogether.
Lighter-colored new leaves
Insufficient sunlight can cause leaves to develop irregular color patterns or appear pale. This indicates a lack of chlorophyll and essential nutrients.
Solutions
1. To ensure optimal growth, gradually move plants to a sunnier location each week, until they receive at least 6 hours of direct sunlight daily. Use a south-facing window and keep curtains open during the day for maximum sunlight exposure and nutrient accumulation.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.
Symptoms of Excessive light in %s
Chinese yam thrives in full sun exposure and can tolerate intense sunlight. With their remarkable resilience, symptoms of sunburn may not be easily visible, as they rarely suffer from it.
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(Symptom details and solutions)
Chlorosis
Chlorosis is a condition where the plant's leaves lose their green color and turn yellow. This is due to the breakdown of chlorophyll from excessive sunlight, which negatively affects the plant's ability to photosynthesize.
Sunscald
Sunscald occurs when the plant's leaves or stems are damaged by intense sunlight exposure. It appears as pale, bleached, or necrotic areas on the plant tissue and can reduce the plant's overall health.
Leaf Curling
Leaf curling is a symptom where leaves curl or twist under extreme sunlight conditions. This is a defense mechanism used by the plant to reduce its surface area exposed to sunlight, minimizing water loss and damage.
Wilting
Wilting occurs when a plant loses turgor pressure and its leaves and stems begin to droop. Overexposure to sunlight can cause wilting by increasing the plant's water loss through transpiration, making it difficult for the plant to maintain adequate hydration.
Leaf Scorching
Leaf scorching is a symptom characterized by the appearance of brown, dry, and crispy edges or patches on leaves due to excessive sunlight. This can lead to a reduction in photosynthetic capacity and overall plant health.
Solutions
1. Move your plant to the optimal position where it can receive abundant sunlight but also have some shade. An east-facing window is an ideal choice as the morning sunlight is gentler. This way, your plant can enjoy ample sunlight while reducing the risk of sunburn.2. It is recommended to trim off any completely dehydrated or withered parts of the plant.
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Temperature
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Indoor
Outdoor
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Requirements
Ideal
Tolerable
Unsuitable
Just like people, each plant has its own preferences. Learn about your plants' temperature needs and create a comforting environment for them to flourish. As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share. Lovingly monitor the temperature around your plants and adjust their environment as needed. A thermometer can be your ally in this heartfelt endeavor. Be patient and gentle with yourself as you explore your plants' temperature needs. Cherish your successes, learn from challenges, and nurture your garden with love, creating a haven that reflects the warmth of your care.
Essentials
Chinese yam is indigenous to areas where the temperature ranges from 41 to 100.4 °F (5 to 38 ℃). This plant thrives in moderate climates. Seasonal adjustments in care should consider these temperature requirements for optimal growth.
Regional wintering strategies
Chinese yam prefers relatively warm temperatures, so maintaining temperatures above {Suitable_growth_temperature_min} during winter cultivation is beneficial for plant growth. The minimum temperature should be kept above freezing point to prevent the plant from freezing damage. When the outdoor temperature approaches -5°C (25°F) during winter, it is advisable to bring Chinese yam indoors or provide protection by setting up a temporary greenhouse or using materials such as plastic film or fabric to wrap the plant.
Important Symptoms
Symptoms of Low Temperature in Chinese yam
Chinese yam has moderate tolerance to low temperatures and thrives best when the temperature is between {Suitable_growth_temperature_min} and {Suitable_growth_temperature_max}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, the leaves may darken in color. In severe cases, water-soaked necrosis, wilting, and drooping may occur, and the color of the leaves gradually turns brown.
Solutions
Trim away the frost-damaged parts. Immediately move indoors to a warm environment or set up a makeshift greenhouse for cold protection. When placing the plant indoors, choose a location near a south-facing window to ensure ample sunlight. If there is insufficient light, you can use supplemental lighting.
Symptoms of High Temperature in Chinese yam
During summer, Chinese yam should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the plant's growth slows down, the color of its leaves becomes lighter, and it becomes more susceptible to sunburn.
Solutions
Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the afternoon sun. Water the plant in the morning and evening to keep the soil moist.
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Google Analytics
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These cookies are set because of our use of Google Analytics. They are used to collect information about your use of our application/website. The cookies collect specific information, such as your IP address, data related to your device and other information about your use of the application/website. Please note that the data processing is essentially carried out by Google LLC and Google may use your data collected by the cookies for own purposes, e.g. profiling and will combine it with other data such as your Google Account. For more information about how Google processes your data and Google’s approach to privacy as well as implemented safeguards for your data, please see here.
Lifespan
1 Year

Cookie Name
_pta
Source
PictureThis Analytics
Purpose
We use these cookies to collect information about how you use our site, monitor site performance, and improve our site performance, our services, and your experience.
Lifespan
1 Year
Marketing Cookies
Marketing cookies are used by advertising companies to serve ads that are relevant to your interests.
Cookie Name Source Purpose Lifespan
_fbp Facebook Pixel A conversion pixel tracking that we use for retargeting campaigns. Learn more here. 1 Year
_adj Adjust This cookie provides mobile analytics and attribution services that enable us to measure and analyze the effectiveness of marketing campaigns, certain events and actions within the Application. Learn more here. 1 Year
Cookie Name
_fbp
Source
Facebook Pixel
Purpose
A conversion pixel tracking that we use for retargeting campaigns. Learn more here.
Lifespan
1 Year

Cookie Name
_adj
Source
Adjust
Purpose
This cookie provides mobile analytics and attribution services that enable us to measure and analyze the effectiveness of marketing campaigns, certain events and actions within the Application. Learn more here.
Lifespan
1 Year
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