Type of Weed: Grassy Weed
Annual bluegrass is a winter annual grassy weed that is also commonly referred to by its scientific name, poa annua.
This weed is adorned by seed-filled spikelets capable of producing enormous amounts of seeds giving it a rapid spread and growth rate.
Poa annua germinates in the fall, and preventative herbicide treatments are the best control method.
How to Identify
Due to the incredibly fast growth rate of poa annua, this weed can be difficult to stop once it has germinated. The seedheads of this weed are capable of persisting even when mowed at very low heights. Because this weed is so well covered with seeds and has such a quick growth rate, your best option is to have a lawn control company preventatively treat your yard.