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Dune bean
Dune bean
Dune bean
Dune bean
Dune bean
Dune bean
Vigna marina
Also known as : Field bean
Hardiness Zones
Hardiness Zones
9 to 12
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Key Facts About Dune bean

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Attributes of Dune bean

Lifespan
Perennial
Plant Type
Herb, Vine
Bloom Time
Spring, Summer, Fall
Plant Height
3 m
Spread
1.8 m to 4.5 m
Flower Size
2.5 cm to 5 cm
Flower Color
Yellow
Leaf type
Semi-evergreen
Ideal Temperature
20 - 38 ℃

Scientific Classification of Dune bean

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Distribution of Dune bean

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Distribution Map of Dune bean

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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Questions About Dune bean

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Watering Watering Watering
Sunlight Sunlight Sunlight
What is the best way to water my Dune bean?
When watering the Dune bean, you should aim to use filtered water that is at room temperature. Filtered water is better for this plant, as tap water can contain particles that are harmful to its health. The reason that the water should be at room temperature or slightly warmer is that the Dune bean comes from a warm environment, and cold water can be somewhat of a shock to its system. Also, you should avoid overhead watering for this plant, as it can cause foliage complications. Instead, simply apply your filtered room temperature water to the soil until the soil is entirely soaked. Soaking the soil can be very beneficial for this plant as it moistens the roots and helps them continue to spread through the soil and collect the nutrients they need.
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What should I do if I water my Dune bean too much or too little?
Both overwatering and underwatering will be detrimental to the health of your Dune bean, but overwatering is a far more common issue. When this species receives too much water, its stems and leaves may begin to wilt and turn from green to yellow. Overwatering over a prolonged period may also lead to diseases such as root rot, mold, and mildew, all of which can kill your plant. Underwatering is far less common for the Dune bean, as this plant has decent drought tolerance. However, underwatering remains a possibility, and when it occurs, you can expect to find that the leaves of your Dune bean have become brittle and brown. It is crucial that you notice the signs of overwatering as soon as possible when caring for your Dune bean. Some of the diseases that arise from overwatering, such as root rot, may not be correctable if you wait too long. If you see early signs of overwatering, you should reduce your watering schedule immediately. You may also want to assess the quality of soil in which your Dune bean grows. If you find that the soil drains very poorly, you should replace it immediately with a loose, well-draining potting mix. On the other hand, if you find signs that your Dune bean is receiving too little water, all you need to do is water more regularly until those signs have subsided.
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How often should I water my Dune bean?
If your plant is in a pot. The most precise way to decide whether your Dune bean needs water is to plunge your finger into the soil. If you notice that the first two to three inches of soil have become dry, it is time to add some water. If you grow your Dune bean outdoors in the ground, you can use a similar method to test the soil. Again, when you find that the first few inches of soil have dried out, it is time to add water. During the spring and early fall, this method will often lead you to water this plant about once every week. When extremely hot weather arrives, you may need to increase your watering frequency to about twice or more per week. With that said, mature, well-established the Dune bean can show an admirable ability to withstand drought.
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How much water does my Dune bean need?
When it comes time to water your Dune bean, you should not be shy about how much water you give. With the first two to three inches of soil dry, this plant will appreciate a long and thorough watering. Supply enough water to soak the soil entirely. The amount of water you add should be enough to cause excess water to flow through the drainage holes at the bottom of your pot. If you don’t see excess water draining from the pot, you have likely underwatered your plant. But do not let the water accumulate inside the soil, which will be very dangerous to the plant as well. Alternatively, a lack of water draining through the pot could indicate poorly draining soils, which is detrimental to the health of this plant and should be avoided. If the plant is outside, 1 inch of rain per week will be sufficient.
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How should I water my Dune bean at different growth stages?
The water needs of the Dune bean can change depending on growth stages as well. For example, when your Dune bean is in the first few years of its life, or if you have just transplanted it to a new growing location, you will need to give more water than usual. During both of those stages, your Dune bean will put a lot of energy towards sprouting new roots that will then support future growth. For those roots to perform their best, they need a bit more moisture than they would at a more mature phase. After a few seasons, your Dune bean will need much less water. Another growth stage in which this plant may need more water is during the bloom period. Flower development can make use of a significant amount of moisture, which is why you might need to give your Dune bean more water at this time.
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How should I water my Dune bean through the seasons?
The Dune bean will have its highest water needs during the hottest months of the year. During the height of summer, you may need to give this plant water more than once per week, depending on how fast the soil dries out. The opposite is true during the winter. In winter, your plant will enter a dormant phase, in which it will need far less water than usual. In fact, you may not need to water this plant at all during the winter months. However, if you do water during winter, you should not do so more than about once per month. Watering too much at this time will make it more likely that your Dune bean will contract a disease.
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What's the difference between watering my Dune bean indoors and outdoors?
It is most common to grow the Dune bean indoors for any gardener that does not live in temperate and tropical regions. Those gardeners should consider the fact that soil in a container can dry out a bit faster than ground soil. Also, the presence of drying elements such as air conditioning units can cause your Dune bean to need water on a more frequent basis as well. if you planted it outside. When that is the case, it’s likely you won’t need to water your Dune bean very much at all. If you receive rainfall on a regular basis, that may be enough to keep your plant alive. Alternatively, those who grow this plant inside will need to water it more often, as allowing rainwater to soak the soil will not be an option.
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More Info on Dune Bean Growth and Care

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Basic Care Guide
Lighting
Full sun
Dune bean thrives most effectively with an accompaniment of ample illumination. The health-driven growth solely relies upon substantial light conditions. Its original living environments advocate for an atmosphere flooded with light, albeit it may survive moderate shade. Overbearing or deficient light may potentially hinder its development.
Best Sunlight Practices
Transplant
18-24 inches
Transplanting dune bean flourishes best when done as the chill of winter wanes and the warmth of the sun gently ushers in a new cycle of growth. Choose a sunny spot with well-draining soil for this hardy perennial to thrive.
Transplant Techniques
Pruning
Spring, Summer
Thriving in coastal environments, dune bean requires regular pruning to promote healthy growth and manage its spreading habit. Prune during spring or summer when the plant is actively growing. Remove dead or damaged stems, trim for shape, and thin out dense areas to enhance air circulation. This will also encourage new growth and potentially more flowers or pods. Always use clean, sharp tools to prevent disease transmission and ensure clean cuts for quick recovery.
Pruning techniques
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Plants Related to Dune bean

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Baybean
Baybean
Baybean (Canavalia rosea) is a pantropical plant from the same family as the common pea and other legumes. Its seeds are so buoyant that they can float on ocean currents and be distributed far from the original parent plant. It is highly tolerant of salt and does well in sandy, well-drained soils.
Hairypod cowpea
Hairypod cowpea
The common name for Vigna luteola derives from "waakimbala", a Native American Chickasaw word that means "hairypod cowpea." This plant has a particularly robust ability to repel pests because of the high levels of quercetin and isorhamnetin in its leaves. The genus name "luteola" translates to "yellow", referring to the plant's gold-colored flowers.
Least snout-bean
Least snout-bean
Least snout-bean (Rhynchosia minima) is a legume commonly used as a nutritious forage plant for livestock. This vine grows naturally in every continent, but in Hawaii, it has been naturalized. The Latin prefix "Rhync" in its scientific name derives from its nose-shaped flower, and the specific epithet "minima" refers to its very small flowers, seeds, and pods.
Cowpea
Cowpea
Cowpea (Vigna unguiculata) is an annual grain legume that is an important crop in many regions. The plant has been used as forage for animals and for cow feed. It can be short and bushy or grow as a long vine up to 2 m tall. The edible seeds and seed pods are very small and kidney-shaped.
Common bean
Common bean
Common bean is one of the most widely produced cash crops in the world, with 23.6 million tons grown in 2016. China is the largest producer of common bean, accounting for 79% of the market share. While common bean is known as a staple food source, the leaves can be used to trap bedbugs and the beans are widely used in a type of fortune-telling called "pharmancy".
Purple bushbean
Purple bushbean
Purple bushbean (Macroptilium atropurpureum) is a flowering vine species native to tropical North, Central, and South America. Purple bushbean is often used in hay, or as a ground cover to prevent soil erosion. This species thrives in a variety of soil types.
Asian beach jackbean
Asian beach jackbean
Although it is a vine perennial herb the base becomes woody. The vine reaches more than 5 m in length. The stems are sparsely crushed with short downward pressures but many later fall off. The leaves are three-leaved compound leaves the leaflets are slightly yellowish green round to wide oval 5 to 12 cm long 4 to 10 cm wide slightly leathery with sharp or rounded tips. The leaves are oval and have sharp tips and fall off quickly. The flowering period is in summer and a general inflorescence is produced from the leaves. Add more than a dozen flowers to one inflorescence. The flowers are light pink and 2.5 to 3 cm long. The wing and keel flaps are almost the same length. The heel is about 1 cm in length and the tip of the upper heel piece protrudes slightly. Note that this flower is upside down from a normal bean flower that is the keel flap is up the tip is down and the flag valve is down. This is because the branches of the inflorescences coming out of the leaf buds are curved downward and extend. The legumes are 5 to 10 cm long and 3 to 3.5 cm wide and contain 2-5 seeds. The seeds are brown ellipsoid 1.5 cm long and have a navel.
American hog-peanut
American hog-peanut
American hog-peanut (Amphicarpaea bracteata) is a legume also commonly called the ground bean. American hog-peanut is native to woodlands in eastern North America. When cooked, the roots and seeds found underground are edible.
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Dune bean
Dune bean
Dune bean
Dune bean
Dune bean
Dune bean
Vigna marina
Also known as: Field bean
Hardiness Zones
Hardiness Zones
9 to 12
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Key Facts About Dune bean

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Attributes of Dune bean

Lifespan
Perennial
Plant Type
Herb, Vine
Bloom Time
Spring, Summer, Fall
Plant Height
3 m
Spread
1.8 m to 4.5 m
Flower Size
2.5 cm to 5 cm
Flower Color
Yellow
Leaf type
Semi-evergreen
Ideal Temperature
20 - 38 ℃
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Scientific Classification of Dune bean

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distribution

Distribution of Dune bean

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Distribution Map of Dune bean

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
question

Questions About Dune bean

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Feedback
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Watering Watering Watering
Sunlight Sunlight Sunlight
What is the best way to water my Dune bean?
more
What should I do if I water my Dune bean too much or too little?
more
How often should I water my Dune bean?
more
How much water does my Dune bean need?
more
How should I water my Dune bean at different growth stages?
more
How should I water my Dune bean through the seasons?
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What's the difference between watering my Dune bean indoors and outdoors?
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More Info on Dune Bean Growth and Care

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Basic Care Guide
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Plants Related to Dune bean

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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
Dune bean thrives most effectively with an accompaniment of ample illumination. The health-driven growth solely relies upon substantial light conditions. Its original living environments advocate for an atmosphere flooded with light, albeit it may survive moderate shade. Overbearing or deficient light may potentially hinder its development.
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
Dune bean thrives in full sunlight and is commonly grown outdoors where it receives ample sunlight. When placed in rooms with inadequate lighting, symptoms of light deficiency may not be readily apparent.
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(Symptom details and solutions)
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 Dune bean 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
Dune bean 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
Dune bean 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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