Also known as Annual Blue Grass · Annual Meadowgrass · Annual Poa
Annual Meadow-grass (Poa annua) is a widespread annual grass, often found in lawns, gardens, and disturbed areas, known for its rapid growth and small flower heads.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
50% intensity
Thrives in a wide range of light conditions, from bright sun to moderate shade.
Regular
50% intensity
Prefers consistently moist soil, but tolerates some dryness.
Clay, Loam, Sand, Silty Loam
50% intensity
Cool to Moderate
50% intensity
Best growth occurs in cool to moderate temperatures; can struggle in prolonged heat.
Low
25% intensity
Requires minimal to no fertilization; over-fertilization can be detrimental.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly, especially during dry periods, to maintain consistent soil moisture. Avoid prolonged drought, as this can stress the plant. Water more frequently in warmer weather and less in cooler temperatures.
Ensure good drainage to prevent waterlogging, which can lead to root rot.
As a low-growing grass, pruning is typically not a significant horticultural practice for Poa annua, especially when considered a weed.
If managed as a lawn component, mowing at an appropriate height (around 2-5 cm) is its form of 'pruning'. Removal of dead material can improve appearance.
Poa annua propagates primarily through seeds, which are produced prolifically and can remain viable in the soil for extended periods. It also spreads vegetatively through tillers.
Natural dispersal by wind, water, and animals is highly effective, making artificial propagation largely unnecessary.
Repotting is not applicable to Poa annua, as it is a free-ranging herbaceous plant, typically found growing directly in the soil. It is not cultivated in containers.
If it appears as an unwanted plant in a pot, the most effective 'repotting' method is removal from the pot.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Annual Meadow-Grass (Poa annua)
Where Annual Meadow-Grass (Poa annua) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Poales |
| Family | Poaceae |
| Genus | Poa |
| Species | Poa annua |
Similar in genus Poa
Answers based on plant encyclopedia data
