Description: Fern-like leaves on stem. White flower heads in flat clusters.
Peak Season: Summer (June - August)
Yarrow is identified by its narrow, fern-like leaves which grow alternately on the stems. The leaves themselves are strongly scented. White flower heads form in flat clusters similar to an umbrella. The root system consists of rhizomes (horizontal stems from which roots protrude) and fibrous roots. In the lawn, it is typically through these rhizomes that yarrow spreads and thickens.
When will I see Yarrow?
Clover is a summer perennial weed, meaning it can live for years. Therefore, you may see it in your lawn throughout the year as long as there is no snow, peaking during the summer months.
How do I get rid of Yarrow and how long will it take?
Yarrow is one of the harder weeds to kill with a selective herbicide, but it can be done. Apply this every 5 to 6 weeks. You should start to see damage and withering to the leaves after the first or second application, with the plant completely killed after 6 consecutive applications.
If you don't want to wait for the whole summer, you may consider weeding them by hand. When doing this however, be sure to pull out the whole root system as they will continue to grow if not completely removed.
How do I prevent Yarrow from infiltrating my lawn?
While there is no way to perfectly keep out all yarrow, there are a few things you can do to help prevent new growth in your lawn. These include:
Your lawn will look its greenest 3 weeks after an application. If it’s not green to your satisfaction be sure to give us a call and we’ll re-spray at no additional charge.
All existing broadleaf weeds will be damaged after 2 consecutive applications. Hard to kill weeds, such as spurge and morning glory, take 6 consecutive applications to kill their root systems. We also spray a pre-emergence herbicide twice to help prevent spurge, crabgrass, and other summer annual weeds.
If you see brown spots anytime during our service for your lawn, please call immediately. We’ll be out to take care of the problem at no additional charge. This includes insecticide, fungicide or information for drought.
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