I'm tackling the weed issue on my patio, where grass and weeds have crept through the cracks. Ideally, I'd like to kill them at the roots, but I know most weed killers require leaves for application, and I might be too late for that. I'm looking for a good, eco-friendly option that won't create an ecological disaster. Any suggestions?
3 Answers
I've been using regular table salt for this! Just make sure there's no rain for a few days. It seems to keep the weeds at bay until the next spring. A sprinkle in the gaps should do the trick!
Most weed killers need direct contact to work effectively and break down quickly in the soil, so using one that lingers can ruin your ability to plant anything in the future. As for small weeds, they typically won't regrow from the roots, so you can just wait to spray any new growth once they’ve sprouted leaves.
The chemical sodium chlorate used to be the go-to, but it's been banned due to its long-lasting impact on the soil—up to 20 years! The best option now is to use systemic herbicides on plants that are about 50mm tall. This method ensures that most of the product goes directly onto the plants instead of contaminating the soil. Just remember, it's all about following the instructions! Many people don't get the best results because they apply it incorrectly.