Bluegrass, Annual Poa annua
May be a common weed in turf seed farms, resulting in turf seed contaminated with the Poa seeds. Germinates early and grows throughout the winter, dying out as hot season sets in. The biggest problem is that it easily adapts to mowing of turf, and will easily produce seed-heads even when mowed regularly. High fertility and irrigation encourage the growth of this weed which is another reason this is a difficult weed to control.
An annual grass, with seeds germinating from late summer, through the winter, and into the following spring. Plants mature from late spring to early summer. Grows well in turf, where it outgrows the desirable turf creating a light green discoloration with abundant seedhead production, and when it dies in the summer it leaves a brown area on the turf.
It originated in Europe, but one of the most widely distributed weed grasses in Georgia' metro Atlanta and Brookhaven area. It thrives in turf, gardens, crops, roadsides, or any other open area that has drainage or slopes.
This weed may be 1 foot tall and bright green. Reproduces only from seed, so stems grow from central point at the soil. Leaves are 2 to 3 inches long, hairless and soft, with ripples or crinkles commonly found near the center of the blade. Seed head may be 1 to 6 inches long with spreading branches which themselves may branch again. Seed heads are flattened and short, with only 3 to 6 seeds per cluster.
How we control this weed?
This weed can be very expensive to treat with products specifically design for the plant because of the high fertility so we could use a more indirect approach that may include drainage installation, overseeding, or just recommend waiting until the temperature rises to dry out the weed. Please give us a call at 770 679-5579.