trefle.io · Taken Jan 15, 2022 by Fabrice Rubio (cc-by-sa)
Poaceae
Annual bluegrass
Poa annua
Also known as Walkgrass, Annual meadow grass, Poa annua, Poa annua var. longiglumis
Zones 4–10Sun Partial SunWater HighCare Low
Native Plants · Grass · Lawn · Cool-Season · Shade-Tolerant · Low-Maintenance · Ground-Cover · Naturalized
Pet-safeBeginner-friendly
Currently out of stock everywhereStock updated 9/6/2026
Annual bluegrass is a cool-season grass that thrives in partial shade with consistent moisture. It requires minimal care and naturally reseeds itself in suitable conditions. Best suited for lawn areas or naturalized spaces rather than ornamental gardening.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Light watering to keep soil consistently moist · Every 3-5 days during active growth
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 5.5–8
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4a-10b
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Form & growth
Mature size and habit
- Mature height
- 2 ft – 5 ft
- Spread
- 4 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Shallow
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Alabama, Alaska, Albania, Alberta, Aleutian Is., Algeria, Altay, Amsterdam-St.Paul Is, Amur, Antarctica, Antipodean Is., Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Ascension, Assam, Austria
Sources: trefle, usda
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