I'm thinking about using glyphosate to kill all the weeds and grass in my garden bed, including a pesky morning glory issue from earlier this season. If I do this by the end of the season and then add 3-4 inches of clean soil on top, will I still be able to grow vegetables in that bed?
3 Answers
Instead of glyphosate, you might consider covering the area with cardboard or wool and then putting some compost on top. Even just stacking some lawn clippings about 10cm high can choke out the weeds. You could also try covering the bed with a light tarp for a couple of weeks during the heat to kill off what's underneath.
Honestly, glyphosate won't stop weeds for good. It will kill everything, and then those stubborn weeds will come right back. There are gentler, more natural methods like sheet mulching that can help keep your beds weed-free without chemicals.
Yes, you can plant soon after using glyphosate, which is one of its benefits. Just make sure to read the label for the recommended waiting period. Keep in mind that Roundup has changed its formula, so double-check that you're applying the right product.
What exactly is sheet mulching? And do you think it would be more effective than the scorched earth method I'm planning?