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Rough bluegrass
Rough bluegrass
Rough bluegrass
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Rough bluegrass
Poa trivialis
Also known as: Rough meadow-grass, Roughstalk bluegrass
Rough bluegrass is a perennial grass that prefers cool, wet habitats and is often found in floodplains, forests, meadows, fields, and shores of rivers and lakes. It has flowers that bloom in late winter and early spring. Rough bluegrass is often confused with Kentucky bluegrass but has much rougher sheaths (hence the common name).
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Plant Type
Plant Type
Grass
Flower Color
Flower Color
White
Green
Purple
Leaf Color
Leaf Color
Green
distribution

Distribution Map

Habitat

Floodplain, Forests, Meadows and fields, Shores of rivers or lakes
distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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Questions About Rough bluegrass

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How to Water Rough bluegrass?
In most places where grasses are used in landscaping, there will be sufficient rainfall to keep it looking good without supplemental irrigation or watering. However, if it is planted in a very dry climate or there is a lengthy drought, Rough bluegrass may die out if it isn’t watered. During the winter months, this grass goes dormant and may appear to be dead, but it still needs moisture to keep from becoming fully dehydrated. It regrows as weather warms up in the spring.

A good rule of thumb for watering Rough bluegrass is that it does best with about an inch of water every 1 week. A thorough drenching in a short period of time is better than a slow and steady drip, as it leads to a stronger, deeper root system.

Freshly planted grass has more specific requirements for watering. After planting, the young grass needs to be kept moist for the first 3 to 4 weeks until it has a chance to establish itself. The best time of year to plant Rough bluegrass is in the late spring to early summer, when there tends to be plenty of rainfall anyway. However, if your area experiences a dry spell after you’ve recently planted grass in your lawn, it is a good idea to cover the grass to prevent water evaporating or to water the lawn to keep soil moist.

Considerations for Watering Rough bluegrass
The environmental conditions, soil type, and amount of drainage will affect how often Rough bluegrass needs to be watered. If your lawn has sandy soil that doesn’t retain much moisture, you may need to irrigate to keep this grass looking its best. Clay soils that drain slowly and hold a lot of water are less likely to need additional water, but can be bad for Rough bluegrass as this grass is sensitive to too much water around its roots.
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What to Do If Your Water Rough bluegrass Too Much or Too Little?
Overwatered Rough bluegrass
If your grass is turning yellow or pale green, it may be getting too much water. Although Rough bluegrass is tolerant of almost any soil type (it is not sensitive to pH, and can be in sandy, loamy, or clay soil types), it doesn’t do well in soil that doesn’t drain well. Avoid planting this grass in marshy areas or where the ground feels spongy. If you irrigate your lawn, err on the side of too little water vs too much, since Rough bluegrass does best if it’s allowed to dry out before being watered again.

Wet soil can allow fungus to grow, or create a favorable habitat for insect pests and weeds. Of course you can’t control how much rain falls on your Zoysia grass, and the occasional heavy rainfall is unlikely to cause problems for this resilient plant. However, long-term overwatering can cause the plant to suffer and even die off.

Underwatered Rough bluegrass
One of the advantages of growing Rough bluegrass is that it can survive without much water since it has adaptations that help it to conserve water. This grass has a deep root system, meaning it can use groundwater if it hasn’t been watered in a while. In drought conditions, this grass will turn yellow and get crispy, but it can recover once the dry spell is over. The ability to recover from a variety of conditions is one of the many reasons that Rough bluegrass is such a popular grass.
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Related Plants

Virginia pepperweed
Virginia pepperweed
Virginia pepperweed (Lepidium virginicum) is a plant species native to North America with the exclusion of certain parts of Canada. Every part of the virginia pepperweed plant is edible and has a peppery taste. This plant can be used as a substitute for black pepper.
Water spinach
Water spinach
Water spinach (Ipomoea aquatica) is an herbaceous trailing vine grown in Asia for its edible roots and shoots, which are used in stir fry and other dishes. Blooms in summer with showy, bell-shaped flowers that appear solitary or in clusters. The plant can become an ecological threat, because it forms dense floating mats over the water surface that shade out native plants, depriving them of sunlight and oxygen.
River she-oak
River she-oak
River she-oak (Casuarina cunninghamiana) is a species of evergreen tree that is native to Australia. Its common name includes "oak" because its wood was viewed as strong and sturdy, comparable to English oak. Casuarina cunninghamiana is often planted to stabilize soil at riverbanks and it makes a good fuelwood that was once commonly used for heating bread ovens.
Golden crownbeard
Golden crownbeard
Golden crownbeard (Verbesina encelioides) is an annual flowering plant species related to the sunflower. Golden crownbeard is also commonly called a butter daisy. This plant produces a strong odor when crushed. Its flowers, nectar and seeds are eaten by insects, butterflies and birds.
Cape dandelion
Cape dandelion
Cape dandelion (Arctotheca calendula) is an herbaceous perennial that thrives in full sun and makes an excellent ground cover. Blooms from spring to summer with bright yellow, daisy-like flowers that attract bees, butterflies and some birds. Propagate by dividing rhizomes or sow seed after last frost. Deadhead flowers after blooming to prevent unexpected plants from growing.
Marsh parsley
Marsh parsley
Marsh parsley (Cyclospermum leptophyllum) was originally native to South America but has since spread globally as a weed that thrives on disturbed ground, such as new construction, along railroad tracks, and in untended gardens. Many areas list marsh parsley as a noxious weed since it threatens to choke out native species.
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About
More Info
Distribution
Care FAQ
Related Plants
Related Articles
Rough bluegrass
Rough bluegrass
Rough bluegrass
Add to My Garden
Rough bluegrass
Poa trivialis
Also known as: Rough meadow-grass, Roughstalk bluegrass
Sunlight
Partial sun
Sunlight
plant_info

More Info

Plant Type
Plant Type
Grass
Flower Color
Flower Color
White
Green
Purple
Leaf Color
Leaf Color
Green
distribution

Distribution Map

Habitat

Floodplain, Forests, Meadows and fields, Shores of rivers or lakes

Map

distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
question

Questions About Rough bluegrass

Watering Watering Watering
Pruning Pruning Pruning
How to Water Rough bluegrass?
more
Free
What to Do If Your Water Rough bluegrass Too Much or Too Little?
more
lock
buy vip bg
You’ve got questions. We’ve got answers.
Let us help take all the guesswork out of your gardening.
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Best Perennial Plant to Grow
# Useful Tips
Best Perennial Plant to Grow
Best Perennial Plant to Grow
# Useful Tips
Best Perennial Plant to Grow
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17,000 local species +400,000 global species studied
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80+ scholars in botany and gardening
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