Fall Weed Spotlight: Annual Bluegrass

Based in Braselton, Ga., Terra Bites Lawn Service is always happy to maintain your lawn so you can spend more time where it counts. Part of the Georgia lawn care we provide deals heavily with weed control. So we want to make sure our customers know exactly which weeds to look out for every season. Since fall is headed our way, we have decided to put the weed spotlight on “Annual Bluegrass.”

Poa Annua a.k.a. Annual Bluegrass FAQs


Photo via www.ipm.ucdavis.edu

What does it look like?

Annual bluegrass actually looks similar to most residential turfgrasses; it has a coarser texture, with unattractive seedheads and is a lighter green color, than most turf.

Why is this weed an issue, if it looks like turf?

The problem with annual bluegrass (not to be mistaken for Kentucky Bluegrass) is that this annual weed overtakes yards very quickly, due to it’s ability to produce hundreds of viable seeds in short spans of time, with the seedheads becoming very unsightly. Like many weeds, it can kill your turfgrass and become quite unmanageable if left growing out of control.

I take care of my lawn almost everyday! How does this weed invade?

One of the biggest causes of annual bluegrass is mismanagement of the lawn, such as cutting the grass too low, over watering, watering too frequently and adding too much fertilizer.  

Annual Bluegrass Control Tips

Here are a few tips to aid you in residential annual bluegrass control from the UGA Extension Office:

  • Avoid overwatering with deep and infrequent irrigation of your turf. This will allow your turfgrass’ roots to develop properly to better compete with this weed.
  • Reduce nitrogen fertilization around peak annual bluegrass germination and growth periods. According to Patrick McCullough, Extension Weed Specialist with the UGA Extension, “Annual bluegrass seed germinates in late summer/early fall once soil temperatures fall below 70° F. Seedlings grow and mature in fall, overwinter in a vegetative state and produce seed in spring…”
  • Core aeration for turfgrass is also suggested to help your turfgrass grow stronger to fight this weed; however, soil compaction practices should be avoided.
  • Mowing height should also be considered, when trying to discourage annual bluegrass. Try not to scalp your lawn when mowing (use the ⅓ rule) and raise the height of your mower if you see annual bluegrass present. It is also a good idea to remove any grass clippings from your lawn is this weed is present, to prevent the seeds from spreading.

Need Weed Control? Call the Experts!

If you are unsure about how to handle the nasty annual bluegrass weed, or if you simply would like a skilled and reliable lawn care company to take care of your yard, please contact Terra Bites Lawn Service! Give us a call at 706-389-5296. Also, please remember to get your FREE lawn care quote today!