Clover

Description: Green, shamrock-shaped leaves. White or pink ball-shaped flowers.
Peak Season: Late summer (July - August)
Treatment: Herbicide

Clover is known for its shamrock-shaped leaves which are relatively easy to pick out. They have white or pink, ball-shaped flowers which can attract bees, and in a lawn that you walk on, is not a good thing. The root system aggressively expands above and below ground all from a main taproot.

When will I see Clover? Clover is a 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 July and August.

How do I get rid of Clover and how long will it take?

Clover 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. This can be effective if you completely pull out the taproot.

How do I prevent Clover from infiltrating my lawn?

While there is no way to perfectly keep out all clover, there are a few things you can do to help prevent new growth in your lawn. These include:

  • A Pre-emergence herbicide in April or May to help prevent germination from new growth.
  • Mowing your lawn on the second highest setting to help crowd out any potential growth and block out the sunlight.
  • Since clover grows best in moist soil with low fertility levels, decrease the frequency of your watering and increase the depth, leaving the water down too low for emerging clover to take advantage of. It also helps to increase fertilization in all levels except phosphorous to make it a less hospitable growing place for clover.