Scientific name: Poa annua
Family: POACEAE
Common names: “Annual bluegrass” “low spear grass”
Plant type: Annual weed
Root system: Shallow fibrous
Conditions:
Soil: compacted, very acidic-alkaline
Moisture: Moist – well drained
Light: Semi-shade – full sun
Location: Lawns and garden beds
Aesthetic:
Comments: Dies in summer heat, leaving bare patches in lawns. 1 plant produces 350 seeds, invades lawns, gardens and golf courses.