this post was submitted on 10 Sep 2026
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Gardening

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The Conversation: To control weeds in your garden, late summer and early fall is the best time to make a difference (theconversation.com)
submitted 3 weeks ago by Artisian@lemmy.world to c/gardening@lemmy.world
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Perhaps most of this is well known to others, but I hadn't thought about how vulnerable so many weeds are right before winter sets in.

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[–] pageflight@piefed.social 12 points 3 weeks ago

You can also attack perennials with herbicides or organic weed-killing chemicals. In late summer and early fall they begin moving carbohydrates down into their root systems for winter storage. If you spray those plants during that period, they will naturally carry those chemicals deep into their root networks. That is much more effective at killing roots than applying weed killer in the spring.

I've been meaning to do this to Japanese Knotweed at my neighbor's fence, if not elsewhere in the neighborhood.