Poa annua

Scientific name: Poa annua


Common names: “Annual bluegrass” “low spear grass”

Plant type: Annual weed

Root system: Shallow fibrous


Soil: compacted, very acidic-alkaline

Moisture: Moist – well drained

Light: Semi-shade – full sun

Location: Lawns and garden beds



Comments: Dies in summer heat, leaving bare patches in lawns.  1 plant produces 350 seeds, invades lawns, gardens and golf courses.


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