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when do weeds stop growing in the fall

The frequency and timing of your fertilizing efforts are also crucial to healthy lawns. Both vary depending on your lawn type and the length of your growing season. Most northern lawns need only one or two applications of fertilizer annually—once in fall and sometimes a second time in spring. Southern grasses might require three feedings—early to mid-spring just after the grass greens up, early summer and again in early fall.

Photo by Saxon Holt

Fertilize Enough, but Not Too Much

Weeds can’t survive without moisture. In areas with little or no summer rain, drip irrigation or soaker hoses help prevent weed seeds from sprouting by depriving them of water. These systems deliver water to the root zone of plants at the soil level. The soil surface and area surrounding the plants stays relatively dry. In contrast, overhead sprinkler systems spray water over the entire soil surface and supply both garden plants and weeds with water.

Smother Weeds with Mulch

Controlling weeds is a fight you can’t win entirely because they always grow back. But you can keep weeds under control by depriving new ones of the conditions they need to take root in the first place. Let’s look at how to prevent weeds from growing.

When do weeds stop growing in the fall

Canada Thistle, courtesy Daryl_Mitchell via Flickr

The first thing to do is identify the weeds that have cropped up in your lawn. This will help you figure out the best way to attack them. Some may be able to be pulled from the ground and you’ll never have to worry about them again. Others may have underground runners that you’ll need to pull out or you’ll end up seeing the weeds return.

What Fall and Winter Weeds Should I Worry About?

Chemicals can be used to control the weeds as well. One reason to identify the weeds first is to make sure you choose the right herbicides. Not all herbicides will be effective against different weeds. You don’t want to waste time and money using the wrong herbicides. Isoxaben is the most common chemical when it comes to treating winter weeds, followed by atrazine. That doesn’t necessarily mean that you should be using it, though – make sure to research in depth.

How Should I Deal With the Weeds?

Fighting weeds is a year-round battle, constantly pulling them out by the roots, applying weed killer, and otherwise trying to bring them under control. Even as fall approaches, and lawns an gardens begin to fade and go dormant, weeds continue to thrive.