Annual Bluegrass

Given that Lane County is one of the largest producers of grass seed in the world, it’s understandable that so many different grass types invade our lawn areas over time. One of the most common and most treatable grass types we see is Annual Bluegrass, also known as Poa. It is often treated as a weed. Poa is prolific in the Willamette Valley because of the mild climate and the large amount of seed heads it produces. The grass is easily recognizable by its white tassel seed heads that stand out against the green blades of grass. Seed heads often get caught inside mower only to be dropped in different areas as the mower cuts different lawns. You can help prevent the distribution of different weeds and grasses to other areas by rinsing out your mower after each lawn.

How do you control Annual Bluegrass? One of the easiest ways is to making pre-emergent applications during the seed germination season. Poa germinates in the cold wet months of winter and early spring, so we recommend making one application for six consecutive months starting in October and ending in March. These applications put a barrier over the entire lawn that helps prevent the seeds from germinating. Since the grass is an annual, it dies once it has completed its life cycle.

If you are finding that different grasses including Annual Bluegrass are invading your lawn, give us a call for a free estimate or consultation to see what can be done in order to keep your lawn looking healthy and uniform. Learn more about how to keep annual bluegrass out of your yard by calling us at 541-688-5987. We’re happy to answer your questions and provide estimates.