Also known as Annual Blue Grass · Annual Meadowgrass · Annual Poa
Annual Meadow-grass (Poa annua) is a ubiquitous grass found worldwide. It's a common weed in lawns and gardens, often thriving in disturbed or compacted soils.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
75% intensity
Thrives in bright light conditions but can adapt to shadier spots.
Moderate
50% intensity
Prefers consistent moisture but tolerates short dry spells. Avoid waterlogging.
Loam, Sandy loam, Clay loam, Silt loam
50% intensity
Cool to Moderate
50% intensity
Prefers cooler temperatures for germination and growth, typically between 10-20°C.
Low
25% intensity
Generally not required; can be harmful if over-applied. Minimal nutrients are needed.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Annual Meadow-grass prefers consistent moisture, especially during its active growth phases. Water deeply when the top 2-3 cm of soil feel dry. Avoid waterlogged conditions, as this can lead to root rot.
Reduce watering during dormancy periods in extremely dry climates.
Pruning is generally not applicable for Annual Meadow-grass, as it is often managed as a lawn weed. If desired for aesthetic control in a turf setting, mowing at a moderate height (e. g.
, 2-4 cm) will prevent excessive seed head formation. Remove any dead or discolored foliage to maintain tidiness.
Annual Meadow-grass propagates primarily through self-seeding. Its seeds are prolific and can remain viable in the soil for extended periods. Natural dispersal occurs via wind, water, and foot traffic.
Artificial propagation is rarely undertaken due to its aggressive natural spread.
Repotting is not relevant for Annual Meadow-grass, as it is an annual herbaceous plant that completes its life cycle within a single growing season. It is typically found growing directly in the ground or as a volunteer in pots, where it germinates from seeds already present in the soil.
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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
