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Ravennagrass
Ravennagrass
Ravennagrass
Ravennagrass
Ravennagrass
Saccharum ravennae
Also known as : Italian sugarcane, Northern pampas grass
Planting Time
Planting Time
Spring, Early summer
care guide

Care Guide for Ravennagrass

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Soil Care
Soil Care
Sand, Loam, Clay, Chalky, Acidic, Neutral
Details on Soil Care Soil Care
Ideal Lighting
Ideal Lighting
Full sun, Partial sun
Details on Sunlight Requirements Ideal Lighting
Ideal Temperature
Ideal Temperature
5 to 9
Details on Temperature Ideal Temperature
Planting Time
Planting Time
Spring, Early summer
Details on Planting Time Planting Time
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Ravennagrass
Water
Water
Twice per week
Sunlight
Sunlight
Full sun
Planting Time
Planting Time
Spring, Early summer
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Questions About Ravennagrass

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What should I do if I water my Ravennagrass too much or too little?
Without proper watering, this beautiful ornamental grass will underperform. In the ground, watering issues can be solved, but In a container, too much or too little water will kill Ravennagrass in short order. When Ravennagrass isn't receiving the right amount of water, it may stop growing. In the case of overwatering, it will begin to display yellow leaves with brown tips. Underwatering can produce drooping leaves, weak seed head production, and browned leaves. If you suspect your Ravennagrass has been improperly watered, the first thing to do is figure out if the problem is too much or too little. If your Ravennagrass is getting too much water, stop watering it immediately. Sometimes it can take weeks for heavy soils to dry out, so be patient. At the first sign of new growth, test the soil for moisture and decide whether it needs more water or not. The solution for Ravennagrass receiving too little water is even simpler: give the grasses a nice, deep drink and see if it perks up. Bearing all of this in mind, remember that a long, deep watering is always better than a lot of shallow, frequent waterings. The reason for this is that deep watering encourages grasses to grow deep roots, which makes them more drought resistant and less prone to problems from watering.
Read More more
How often should I water my Ravennagrass?
The watering needs of Ravennagrass will vary depending on where it is planted. Generally, you should water this grass every week. In hot climates, once or twice a week watering in the summer may be necessary. In moderate climates, watering once every seven days or more may be enough. Grass in containers almost always need more frequent watering than grasses in the ground. But with a species such as this that can thrive in full sun or part shade, the location also matters. Shaded grasses need to be watered less frequently than in-ground grasses. Ravennagrass should only be watered when the soil is dry. If you’re unsure when to water, there are a few key signs you can use as your cue. Pressing your finger a couple of inches into the soil will tell you if the soil is dry. For a potted grass, you can weigh the grass with a portable scale to see how light it is, but you can also quickly feel when the pot is light from lack of water. Like many types of grass, the blades may appear folded along their centers and thinner than usual when the roots lack sufficient water. Despite its drought tolerance, regular, deep waterings will reward you with a beautiful color. In the wild, Ravennagrass grows in open scrubland, where it would be subject to extreme heat, loads of bright sun, and intermittent rain. Because this grass is drought resistant, you might expect never to need to water it. But don’t let its hardiness fool you, Ravennagrass still needs care and attention. Even though this hardy grass can handle harsh, dry conditions, gardeners agree that it thrives best with consistent water. When first planted, Ravennagrass will need more frequent water until it has established deep roots. For Ravennagrass in pots, the soil will dry out quickly, especially if the pot is in hot, direct sun for a large part of the day. Test the soil every 3 to 4 days and water only when it feels dry. Ravennagrassed in the ground generally needs less watering, but that depends on the soil it is grown in. Heavy clay soil holds water for a long time and may feel dry at the surface while still retaining plenty of moisture below the ground. Sandy soils that drain quickly will need to be watered more often.
Read More more
What should I be careful with when I water my Ravennagrass in different seasons, climates, or during different growing?
You can often tell if you are watering enough by the rate of growth of your grasses. Ravennagrass during the hottest months of the year and has been known to double in size in a year’s time. If the weather is hot and the grass is not growing vigorously, you may need to adjust your watering schedule. In winter, you might be able to get away with watering only once a month, but you will still want to touch the soil to test for moisture. During a growth cycle (in the warmest months), the grass will need more water than usual. But during winter and cooler months, the need for water will be dramatically reduced. The most important thing to remember about Ravennagrass is that the soil it is planted in should always be allowed to dry out completely before adding water.
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Key Facts About Ravennagrass

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Attributes of Ravennagrass

Lifespan
Perennial
Plant Type
Grass
Planting Time
Spring, Early summer
Bloom Time
Late summer, Fall
Plant Height
1.8 m to 6 m
Spread
1.2 m to 1.8 m
Leaf Color
Green
Gray
Flower Size
15 cm
Flower Color
Purple
White
Dormancy
Winter dormancy
Leaf type
Deciduous
Ideal Temperature
5 - 35 ℃
Growth Season
Summer, Fall, Winter
Growth Rate
Moderate

Usages

Garden Use

Scientific Classification of Ravennagrass

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Common Pests & Diseases About Ravennagrass

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Common issues for Ravennagrass based on 10 million real cases
Underwatering dry
Underwatering is a condition, not a disease, affecting Ravennagrass, caused when the plant does not receive adequate water. This leads to dehydration, stunted growth, wilting, and potential death if not addressed promptly.
Aged yellow and dry
Aged yellow and dry Aged yellow and dry
Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Solutions: If the yellowing and drying of leaves and flowers is a natural progression due to age, nothing can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
Yellow spot
Yellow spot Yellow spot
Yellow spot
Leaf spot can show up as yellow or white spots on the leaves.
Solutions: Diseases Fungicides can prevent the transmission of spores, but they may not treat the established infection. The first step is removing and disposing of all infected plant parts. Then apply recommended chemicals. For bacterial infections, apply a spray containing copper or streptomycin. For fungal infections, consult the local cooperative extension for recommendations on which fungicides will work best. Nutrient deficiency Apply a liquid fertilizer via foliar application to fix the deficiency quickly. Follow label directions regarding dosing instructions and application notes, such as not using before the rain or when temperatures are out of the recommended range. Incorrect watering Determine the water requirements for your specific plant, and follow accordingly. Some plants like consistently moist soil, and others like the soil to dry out slightly before being watered. Pests Thoroughly apply an insecticidal soap, an organic product like neem oil, or an appropriate chemical insecticide to the plant.
Leaf rot
Leaf rot Leaf rot
Leaf rot
This pathogen can cause the leaves to rot.
Solutions: Bacterial infections need to be treated quickly to prevent the spread to neighboring, healthy plants, potentially wiping out large sections of your indoor or outdoor garden. In mild cases: Use sterilized (10% bleach solution) pruning shears or scissors to remove any infected plant parts, making sure to dispose of them off site. Use a copper-based bactericide to treat the unaffected foliage, as well as the soil, and neighboring plants. Follow the manufacturer’s rate and timing directions found on the product label. In severe cases, where more than half the leaves are affected: Remove all of the infected plants from the garden, disposing of them off site. Treat the soil and neighboring plants using a copper-based bactericide. Follow the manufacturer’s rate and timing directions found on the product label.
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plant poor
Underwatering dry
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Underwatering dry Disease on Ravennagrass?
What is Underwatering dry Disease on Ravennagrass?
Underwatering is a condition, not a disease, affecting Ravennagrass, caused when the plant does not receive adequate water. This leads to dehydration, stunted growth, wilting, and potential death if not addressed promptly.
Symptom Analysis
Symptom Analysis
Ravennagrass initially shows signs of drooping or wilting. The leaves may turn yellow and eventually brown, curling at the edges. Stunted growth and drying of the plant may follow if the condition persists.
What Causes Underwatering dry Disease on Ravennagrass?
What Causes Underwatering dry Disease on Ravennagrass?
1
Inadequate watering
Underwatering occurs when Ravennagrass does not receive the required amount of water, leading to various symptoms of dehydration.
How to Treat Underwatering dry Disease on Ravennagrass?
How to Treat Underwatering dry Disease on Ravennagrass?
1
Non pesticide
Increase watering frequency: Ensure Ravennagrass receives sufficient water, especially during hot, dry periods.

Mulching: Applying a layer of mulch around Ravennagrass can help retain soil moisture.
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Aged yellow and dry
plant poor
Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Overview
Overview
Regardless of the type of plant or where it is grown, at some point, it will begin to aged yellow and dry. This is a natural, unavoidable process that happens when the plant has completed all of the steps in its life.
Annual plants go through this process at the end of a single growing season. Perennial plants live for multiple years, if not tens or hundreds of years, but will still ultimately exhibit these symptoms.
Symptom Analysis
Symptom Analysis
When plants have progressed through their natural developmental stages and are nearing the end of their lifecycle, they begin showing signs of decline. Leaves will start to yellow and droop, and over time they turn papery brown and dry.
Once completely dry, the leaves begin to fall from the plant until the entire plant has dried out.
Disease Cause
Disease Cause
At the end of its life, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence or natural aging and death. Cell division stops, and the plant begins catabolizing resources to use in other parts of the plant.
As this happens, the tissues begin yellow and drying until the entire plant is desiccated and perishes.
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Yellow spot
plant poor
Yellow spot
Leaf spot can show up as yellow or white spots on the leaves.
Overview
Overview
Yellow spot is a common condition that affects all types of plants -- flowering ornamentals, trees, shrubs, herbs, and vegetable plants -- worldwide. Yellow spots may appear because of dozens of potential causes and occur in various environmental and climatic conditions, but fortunately, most are easy to address. The most common causes of yellow spots include diseases, nutrient deficiency, watering problems, and pests.
In most cases, yellow spots can be treated without permanent damage to the plant. However, in some fungal disease cases, nothing can be done to treat the disease after infection, and the plant will ultimately perish from the disease.
Due to this, the most critical aspect of addressing yellow spots on plants is correctly determining the cause.
Symptom Analysis
Symptom Analysis
Symptoms occur on varying parts of the plant, depending upon the cause. Smaller spots tend to be indicative of younger infections or newly developing problems.
  • Small yellow spots appear on leaves
  • Spots can occur on the lower or upper leaf surfaces, or both
  • Raised, rounded, or sunken spots with fringed or smooth edges
  • Spots may grow together, causing leaves to become totally discolored
  • Stunted growth
  • Premature leaf drop
Disease Cause
Disease Cause
The vast majority of yellow spot diseases are caused by fungal pathogens. However, there are some situations in which bacteria, environmental conditions, or other issues may be blamed.
Diseases are typically host-specific, so they may only affect plants within the same family. That said, just about every single species of plant is vulnerable to at least one disease that causes yellow spot. The most common problems are leaf blight, leaf septoria, powdery mildew, and downy mildew, to name a few.
All plants need specific nutrients from the soil to survive. When these nutrients become depleted or unavailable for plant uptake due to particular conditions, deficiencies occur, and yellow spots are seen.
  • Nitrogen is an integral component of chlorophyll.
  • Iron is needed in the enzymes that make chlorophyll.
Yellow spots may also appear because of incorrect watering, mainly underwatering, or infestations of sap-sucking pests such as aphids.
  • Too little water inhibits photosynthesis. Too much water pushes oxygen out of the soil and the roots cannot take in nutrients or even water from the soil.
  • Insect problems can cause yellow spots directly by damaging leaf tissue when feeding, or they may introduce pathogens.
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Leaf rot
plant poor
Leaf rot
This pathogen can cause the leaves to rot.
Overview
Overview
Leaf rot is very common among both house plants and garden plants. It affects foliage and occurs mainly when the leaves become wet due to rain or misting by the gardener. The cause is fungal disease and this is facilitated by the fungal spores adhering to wet leaves then penetrating the leaf and expanding rapidly. Damp conditions and poor air circulation will increase chances of infection taking place. Another factor are leaves that are damaged or have been penetrated by sap sucking insects that facilitate plant penetration.
Symptom Analysis
Symptom Analysis
  1. Spores are able to cling to a damp leaf and penetrate, often through an existing wound.
  2. A small dark brown mark appears which expands rapidly as sporulation starts to take place.
  3. Quite quickly these bull's eye like circles can link together and the whole leaf turns dark and loses texture.
  4. Leaf drop occurs.
Disease Cause
Disease Cause
These symptoms are caused by a bacterial infection invading the plant. Bacteria from many sources in the environment (air, water, soil, diseased plants) enter a plant through wounds, or in some cases the stomata when they are open. Once inside the leaf tissue, the bacteria feed and reproduce quickly, breaking down healthy leaves.
Bacterial infections threaten most plant species, and are more prominent in wet weather that more easily transfers the bacteria from plant to plant, or from soil to plant.
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distribution

Distribution of Ravennagrass

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Habitat of Ravennagrass

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Northern Hemisphere
South Hemisphere

Distribution Map of Ravennagrass

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

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Basic Care Guide
Common Pests & Diseases
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Lighting
Full sun
Ravennagrass thrives under abundant sunlight but can accommodate lesser amounts as well. It originated in environments where sunlight is ample. Lack of adequate light might hamper its growth while too much exposure can cause harm, although it generally stands robust in extreme conditions.
Best Sunlight Practices
Transplant
45-60 cm
The perfect time to transplant ravennagrass is during the budding season of early to mid-spring, as this encourages healthy root establishment. Ideally, choose a sunny location with well-draining soil for ravennagrass. Remember, gentle handling of the roots is crucial for thriving growth.
Transplant Techniques
Temperature
-20 - 38 ℃
Ravennagrass prefers temperatures between 41 to 95 ℉ (5 to 35 ℃). Its native growth environment is in temperate regions but can also adapt to subtropical and tropical areas. During the winter, temperatures below 23℉ (-5℃) can damage the plant, so it requires protection or should be grown in a warm location.
Temp for Healthy Growth
Propagation
Spring, Autumn
Ravennagrass is primarily propagated by division during its optimal growth seasons, spring and autumn. This method presents moderate difficulty. Successful signs include new shoots and healthy root development. Consistent moisture levels aid propagation success.
Propagation Techniques
Underwatering dry
Underwatering is a condition, not a disease, affecting Ravennagrass, caused when the plant does not receive adequate water. This leads to dehydration, stunted growth, wilting, and potential death if not addressed promptly.
Read More
Leaf blight
Leaf blight is a fungal disease affecting Ravennagrass, causing discoloration and drying of leaf edges, potentially halting growth. Proper disease management practices such as balanced irrigation, regular scouting for symptoms, and timely treatment can help control this disease.
Read More
Brown blotch
Brown spot is a fungal disease affecting Ravennagrass, causing decline in overall plant health. It's marked by elongated, brown lesions on the leaf blades. The disease may impact plant vigor but is usually not lethal.
Read More
Plant dried up
Plant dried up' is a condition that affects Ravennagrass, leading to water deficiency, leaf desiccation, and eventual plant death. It's often caused by environmental factors, and if untreated, it poses a significant threat to the plant's health.
Read More
Feng shui direction
East
The ravennagrass is quite plausible for East-facing environments. According to Feng Shui principles, the plant's tall growth and robust nature express strong Wood energy, beneficial for the East, a zone symbolizing Family and Health. Note, interpretation varies and this perspective isn't absolute.
Fengshui Details
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Plants Related to Ravennagrass

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White ash
White ash
White ash is a species of ash tree native to North America. Its leaves turn distinctly bright yellow or red in the autumn. *Fraxinus americana* is a fast-growing pioneer species that often inhabits riparian zones, and fragmented and disturbed habitats. It is similar in appearance to green ash (Fraxinus americana) and sometimes it is hard to tell between the two.
Tamarisk
Tamarisk
Tamarisk is a hardy shrub or small tree with feathery leaves and plumes of showy flowers. It is easy to grow and works well as a hedge or windshield. Its tamarisk, refers to its ability to tolerate salt water. The shrub uses special glands to excrete the salt through its leaves.
Strawberry guava
Strawberry guava
Strawberry guava (Psidium cattleianum) is a fruit bearing shrub that will grow from 3.5 to 6 m tall. It has deeply colored foliage. Native to Brazil, it grows best in warm, tropical climates. It blooms in spring with small white flowers. Clusters of red berries ripen in summer and have a sweet, tart flavor, similar to a strawberry. It provides a colorful accent to any garden. It thrives in full sun with rich, sandy loam soil.
Shepherd's purse
Shepherd's purse
Shepherd's purse (Capsella bursa-pastoris) is native to Eastern Europe and Asia minor. Having spread and become naturalized around the world, this herbaceous plant is typically considered a weed. Shepherd's purse is considered a "protocarnivore" because it attracts nematodes (small worms in the soil) and poisons them with its seeds. By eliminating nematodes, this plant enriches the surrounding soil.
Scots pine
Scots pine
Scots pine (Pinus sylvestris) is a native Eurasian pine plant that grows on nutrient-poor, dry, rocky soils. Given the name, it should come as no surprise that scots pine is the national tree of Scotland. It is also important within the forestry industry due to its use for wood pulp and timber.
Russian Thistle
Russian Thistle
Kali tragus subsp. tragus can be eaten raw or cooked when young and tender. Older plants, on the other hand, become too tough and woody to eat. Some individuals may be sensitive and allergic to this plant. When it becomes dry, it can be a fire hazard.
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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Ravennagrass
Ravennagrass
Ravennagrass
Ravennagrass
Ravennagrass
Saccharum ravennae
Also known as: Italian sugarcane, Northern pampas grass
Planting Time
Planting Time
Spring, Early summer
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Care Guide for Ravennagrass

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Questions About Ravennagrass

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What should I do if I water my Ravennagrass too much or too little?
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How often should I water my Ravennagrass?
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What should I be careful with when I water my Ravennagrass in different seasons, climates, or during different growing?
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Key Facts About Ravennagrass

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Attributes of Ravennagrass

Lifespan
Perennial
Plant Type
Grass
Planting Time
Spring, Early summer
Bloom Time
Late summer, Fall
Plant Height
1.8 m to 6 m
Spread
1.2 m to 1.8 m
Leaf Color
Green
Gray
Flower Size
15 cm
Flower Color
Purple
White
Dormancy
Winter dormancy
Leaf type
Deciduous
Ideal Temperature
5 - 35 ℃
Growth Season
Summer, Fall, Winter
Growth Rate
Moderate
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Usages

Garden Use

Scientific Classification of Ravennagrass

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pests

Common Pests & Diseases About Ravennagrass

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Feedback
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Common issues for Ravennagrass based on 10 million real cases
Underwatering dry
Underwatering is a condition, not a disease, affecting Ravennagrass, caused when the plant does not receive adequate water. This leads to dehydration, stunted growth, wilting, and potential death if not addressed promptly.
Learn More About the Underwatering dry more
Aged yellow and dry
Aged yellow and dry Aged yellow and dry Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Solutions: If the yellowing and drying of leaves and flowers is a natural progression due to age, nothing can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
Learn More About the Aged yellow and dry more
Yellow spot
Yellow spot Yellow spot Yellow spot
Leaf spot can show up as yellow or white spots on the leaves.
Solutions: Diseases Fungicides can prevent the transmission of spores, but they may not treat the established infection. The first step is removing and disposing of all infected plant parts. Then apply recommended chemicals. For bacterial infections, apply a spray containing copper or streptomycin. For fungal infections, consult the local cooperative extension for recommendations on which fungicides will work best. Nutrient deficiency Apply a liquid fertilizer via foliar application to fix the deficiency quickly. Follow label directions regarding dosing instructions and application notes, such as not using before the rain or when temperatures are out of the recommended range. Incorrect watering Determine the water requirements for your specific plant, and follow accordingly. Some plants like consistently moist soil, and others like the soil to dry out slightly before being watered. Pests Thoroughly apply an insecticidal soap, an organic product like neem oil, or an appropriate chemical insecticide to the plant.
Learn More About the Yellow spot more
Leaf rot
Leaf rot Leaf rot Leaf rot
This pathogen can cause the leaves to rot.
Solutions: Bacterial infections need to be treated quickly to prevent the spread to neighboring, healthy plants, potentially wiping out large sections of your indoor or outdoor garden. In mild cases: Use sterilized (10% bleach solution) pruning shears or scissors to remove any infected plant parts, making sure to dispose of them off site. Use a copper-based bactericide to treat the unaffected foliage, as well as the soil, and neighboring plants. Follow the manufacturer’s rate and timing directions found on the product label. In severe cases, where more than half the leaves are affected: Remove all of the infected plants from the garden, disposing of them off site. Treat the soil and neighboring plants using a copper-based bactericide. Follow the manufacturer’s rate and timing directions found on the product label.
Learn More About the Leaf rot more
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plant poor
Underwatering dry
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Underwatering dry Disease on Ravennagrass?
What is Underwatering dry Disease on Ravennagrass?
Underwatering is a condition, not a disease, affecting Ravennagrass, caused when the plant does not receive adequate water. This leads to dehydration, stunted growth, wilting, and potential death if not addressed promptly.
Symptom Analysis
Symptom Analysis
Ravennagrass initially shows signs of drooping or wilting. The leaves may turn yellow and eventually brown, curling at the edges. Stunted growth and drying of the plant may follow if the condition persists.
What Causes Underwatering dry Disease on Ravennagrass?
What Causes Underwatering dry Disease on Ravennagrass?
1
Inadequate watering
Underwatering occurs when Ravennagrass does not receive the required amount of water, leading to various symptoms of dehydration.
How to Treat Underwatering dry Disease on Ravennagrass?
How to Treat Underwatering dry Disease on Ravennagrass?
1
Non pesticide
Increase watering frequency: Ensure Ravennagrass receives sufficient water, especially during hot, dry periods.

Mulching: Applying a layer of mulch around Ravennagrass can help retain soil moisture.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
close
Aged yellow and dry
plant poor
Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Overview
Overview
Regardless of the type of plant or where it is grown, at some point, it will begin to aged yellow and dry. This is a natural, unavoidable process that happens when the plant has completed all of the steps in its life.
Annual plants go through this process at the end of a single growing season. Perennial plants live for multiple years, if not tens or hundreds of years, but will still ultimately exhibit these symptoms.
Symptom Analysis
Symptom Analysis
When plants have progressed through their natural developmental stages and are nearing the end of their lifecycle, they begin showing signs of decline. Leaves will start to yellow and droop, and over time they turn papery brown and dry.
Once completely dry, the leaves begin to fall from the plant until the entire plant has dried out.
Disease Cause
Disease Cause
At the end of its life, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence or natural aging and death. Cell division stops, and the plant begins catabolizing resources to use in other parts of the plant.
As this happens, the tissues begin yellow and drying until the entire plant is desiccated and perishes.
Solutions
Solutions
If the yellowing and drying of leaves and flowers is a natural progression due to age, nothing can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
Prevention
Prevention
Unfortunately, there is no way to prevent plants from dying of “old age.” To help prolong their life, and put off symptoms of aged yellow and dry for as long as possible, take care of them by giving them enough water, fertilizing them appropriately, and making sure they get enough sunlight.
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Yellow spot
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Yellow spot
Leaf spot can show up as yellow or white spots on the leaves.
Overview
Overview
Yellow spot is a common condition that affects all types of plants -- flowering ornamentals, trees, shrubs, herbs, and vegetable plants -- worldwide. Yellow spots may appear because of dozens of potential causes and occur in various environmental and climatic conditions, but fortunately, most are easy to address. The most common causes of yellow spots include diseases, nutrient deficiency, watering problems, and pests.
In most cases, yellow spots can be treated without permanent damage to the plant. However, in some fungal disease cases, nothing can be done to treat the disease after infection, and the plant will ultimately perish from the disease.
Due to this, the most critical aspect of addressing yellow spots on plants is correctly determining the cause.
Symptom Analysis
Symptom Analysis
Symptoms occur on varying parts of the plant, depending upon the cause. Smaller spots tend to be indicative of younger infections or newly developing problems.
  • Small yellow spots appear on leaves
  • Spots can occur on the lower or upper leaf surfaces, or both
  • Raised, rounded, or sunken spots with fringed or smooth edges
  • Spots may grow together, causing leaves to become totally discolored
  • Stunted growth
  • Premature leaf drop
Disease Cause
Disease Cause
The vast majority of yellow spot diseases are caused by fungal pathogens. However, there are some situations in which bacteria, environmental conditions, or other issues may be blamed.
Diseases are typically host-specific, so they may only affect plants within the same family. That said, just about every single species of plant is vulnerable to at least one disease that causes yellow spot. The most common problems are leaf blight, leaf septoria, powdery mildew, and downy mildew, to name a few.
All plants need specific nutrients from the soil to survive. When these nutrients become depleted or unavailable for plant uptake due to particular conditions, deficiencies occur, and yellow spots are seen.
  • Nitrogen is an integral component of chlorophyll.
  • Iron is needed in the enzymes that make chlorophyll.
Yellow spots may also appear because of incorrect watering, mainly underwatering, or infestations of sap-sucking pests such as aphids.
  • Too little water inhibits photosynthesis. Too much water pushes oxygen out of the soil and the roots cannot take in nutrients or even water from the soil.
  • Insect problems can cause yellow spots directly by damaging leaf tissue when feeding, or they may introduce pathogens.
Solutions
Solutions
Diseases
Fungicides can prevent the transmission of spores, but they may not treat the established infection. The first step is removing and disposing of all infected plant parts. Then apply recommended chemicals.
For bacterial infections, apply a spray containing copper or streptomycin.
For fungal infections, consult the local cooperative extension for recommendations on which fungicides will work best.
Nutrient deficiency
Apply a liquid fertilizer via foliar application to fix the deficiency quickly. Follow label directions regarding dosing instructions and application notes, such as not using before the rain or when temperatures are out of the recommended range.
Incorrect watering
Determine the water requirements for your specific plant, and follow accordingly. Some plants like consistently moist soil, and others like the soil to dry out slightly before being watered.
Pests
Thoroughly apply an insecticidal soap, an organic product like neem oil, or an appropriate chemical insecticide to the plant.
Prevention
Prevention
Depending on the type of plant and which specific disease is causing yellow spot, problems may be avoided by taking the following preventative steps:
  • Plant resistant varieties
  • Avoid planting susceptible varieties close together - space susceptible plants further apart from one another so it’s more difficult for the fungal spores to find new plant hosts.
  • Water wisely - water from below rather than splashing water on foliage. This can reduce the spread of both bacterial and fungal pathogens responsible for yellow spot.
  • Prune - prune as a way of getting rid of affected leaves but also to control the spread of yellow spot to new plants. Pruning can also improve air circulation to limit disease spread.
  • Rotate crops - many diseases, including downy mildew, can live in the soil over the winter and produce problems for many years. Rotate annual crops to new locations each year so that they aren’t growing anywhere in which plants in the same family were grown within the last three to four years.
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Leaf rot
plant poor
Leaf rot
This pathogen can cause the leaves to rot.
Overview
Overview
Leaf rot is very common among both house plants and garden plants. It affects foliage and occurs mainly when the leaves become wet due to rain or misting by the gardener. The cause is fungal disease and this is facilitated by the fungal spores adhering to wet leaves then penetrating the leaf and expanding rapidly. Damp conditions and poor air circulation will increase chances of infection taking place. Another factor are leaves that are damaged or have been penetrated by sap sucking insects that facilitate plant penetration.
Symptom Analysis
Symptom Analysis
  1. Spores are able to cling to a damp leaf and penetrate, often through an existing wound.
  2. A small dark brown mark appears which expands rapidly as sporulation starts to take place.
  3. Quite quickly these bull's eye like circles can link together and the whole leaf turns dark and loses texture.
  4. Leaf drop occurs.
Disease Cause
Disease Cause
These symptoms are caused by a bacterial infection invading the plant. Bacteria from many sources in the environment (air, water, soil, diseased plants) enter a plant through wounds, or in some cases the stomata when they are open. Once inside the leaf tissue, the bacteria feed and reproduce quickly, breaking down healthy leaves.
Bacterial infections threaten most plant species, and are more prominent in wet weather that more easily transfers the bacteria from plant to plant, or from soil to plant.
Solutions
Solutions
Bacterial infections need to be treated quickly to prevent the spread to neighboring, healthy plants, potentially wiping out large sections of your indoor or outdoor garden.
In mild cases: Use sterilized (10% bleach solution) pruning shears or scissors to remove any infected plant parts, making sure to dispose of them off site. Use a copper-based bactericide to treat the unaffected foliage, as well as the soil, and neighboring plants. Follow the manufacturer’s rate and timing directions found on the product label.
In severe cases, where more than half the leaves are affected: Remove all of the infected plants from the garden, disposing of them off site. Treat the soil and neighboring plants using a copper-based bactericide. Follow the manufacturer’s rate and timing directions found on the product label.
Prevention
Prevention
  1. Clean up garden debris at the end of the season, especially if it contains any diseased plant tissue. Diseases can overwinter from season to season and infect new plants.
  2. Avoid overhead watering to prevent transferring pathogens from one plant to another, and to keep foliage dry.
  3. Mulch around the base of plants to prevent soil-borne bacteria from splashing up onto uninfected plants.
  4. Sterilize cutting tools using a 10% bleach solution when gardening and moving from one plant to another.
  5. Do not work in your garden when it is wet.
  6. Rotate crops to prevent the buildup of bacteria in one site due to continuous cropping.
  7. Use a copper or streptomycin-containing bactericide in early spring to prevent infection. Read label directions carefully as they are not suitable for all plants.
  8. Ensure plants are well spaced and thin leaves on densely leaved plants so that air circulation is maximised.
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Distribution of Ravennagrass

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Habitat of Ravennagrass

Gardens
Northern Hemisphere
South Hemisphere

Distribution Map of Ravennagrass

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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Plants Related to Ravennagrass

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Lighting
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Indoor
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
Ravennagrass thrives under abundant sunlight but can accommodate lesser amounts as well. It originated in environments where sunlight is ample. Lack of adequate light might hamper its growth while too much exposure can cause harm, although it generally stands robust in extreme conditions.
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
Ravennagrass 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 ravennagrass 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
Ravennagrass 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
Ravennagrass 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
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
Ravennagrass prefers temperatures between 41 to 95 ℉ (5 to 35 ℃). Its native growth environment is in temperate regions but can also adapt to subtropical and tropical areas. During the winter, temperatures below 23℉ (-5℃) can damage the plant, so it requires protection or should be grown in a warm location.
Regional wintering strategies
Ravennagrass has strong cold resistance, so special frost protection measures are usually not necessary during winter. However, if the winter temperatures are expected to drop below {Limit_growth_temperature}, it is still important to provide cold protection. This can be achieved by covering the plant with materials such as soil or straw. Before the first freeze in autumn, it is recommended to water the plant abundantly, ensuring the soil remains moist and enters a frozen state. This helps prevent drought and water scarcity for the plant during winter and early spring.
Important Symptoms
Symptoms of Low Temperature in Ravennagrass
Ravennagrass is cold-tolerant and thrives best when the temperature is above {Suitable_growth_temperature_min}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, although there may not be any noticeable changes during winter, there may be a decrease in sprouting or even no sprouting during springtime.
Solutions
In spring, remove any parts that have failed to sprout.
Symptoms of High Temperature in Ravennagrass
During summer, Ravennagrass should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the leaves of the plant may become lighter in color, prone to curling, susceptible to sunburn, and in severe cases, the entire plant may wilt and become dry.
Solutions
Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun, or use a shade cloth to create shade. Water the plant in the morning and evening to keep the soil moist.
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