field clover

Asked June 20, 2020, 3:06 PM EDT

How can I get rid of field clover in my lawn? I have tried digging it out and the roots are strong, tough, and deep. I am an organic gardener and would really like to avoid weed killers. I don't mind reseeding patches in the lawn. Would vinegar be effective if poured directly on the root?

Clackamas County Oregon

1 Response

Clover in lawns can be persistent and difficult to control even using herbicides (synthetic or natural). Vinegar isn’t as easy to use effectively as people often think it is, it’s dangerous to handle, and it kills organisms in the soil. I’ll include a link to University publication about vinegar.
One method of dealing with weeds in a lawn is to grow the very best grass you can, giving it a chance to out-compete the weeds for space and nutrients. Then, over-seed to rejuvenate the turf as needed. Mow the correct height to limit weed seed production, along with adequate irrigation and fertilizer. I’m doing this with my mother’s lawn, and it is working better than I expected, though not a quick-fix, nor giving us a perfect turf, we’re happy with the progress.
So, what is the recommended care? Here is an article from OSU Extension, “As Labor Day creeps up, think about spiffing up lawn”. The links included get into specifics. My favorite is the video covering the basics. https://today.oregonstate.edu/news/labor-day-creeps-think-about-spiffing-lawn
Vinegar information: https://u.osu.edu/knoxcountyag/2019/05/23/can-we-just-quit-with-the-vinegar-epsom-salts-weed-killer-nonsense/