Annual Meadow-grass Scientific Name: Poa annua Other names: Annual Bluegrass, Low Spear-grass Family: Poaceae Annual spreading by seed, does not form runners. Found in nearly all lawns, but does not form unsightly clumps. It is added to some utility lawn seed mixes and is useful under trees, but is a weed in luxury turf. It flowers and produces seed all year round. This can be a problem when the wind blows seed from the lawn to flowerbeds and paths, but is an asset to regenerate the grass sward after periods of drought. Hoe or hand pull in flowerbeds (tough roots). In a luxury lawn hand weed if not too extensive, you will spot the seedheads. Weedkillers to use:- Use a residual agent to suppress germination on paths and around mature plantings. Paraquat, with contact action, will work quickly; apply at seedling stage as seedheads will soon develop. A systemic agent will kill the weed, but seeds may be produced by the time it expires. Follow these links for further details on Weeds, Weed Removal and Weed Prevention.