Weeds will take root where ever they can; even in gravel. This guide is about preventing and killing weeds in gravel.
Mike from Big Bear City, CA
I'm not aware of any home remedies you can make to kill weeds selectively over a large area. For weeds growing up through the gravel you can try spot spraying them with vinegar (vinegar is not selective though, so be careful). You need a hot sunny day for this for it to be really effective. You could also burn weeds with a propane torch. This method seems to work really well for weeds in gravel driveways or paths. Pouring straight Epsom salt on some weeds will turn them black and kill them over the course of a few days. Another strategy is to prevent weeds from germinating by applying corn gluten meal to the area. This is a natural corn by-product (usually used in animal feeds) that provides pre-emergent weed control by interfering with root development. You should be able to find it at feed stores and some garden centers. Corn gluten meal is also non-selective, so you need to time application with when your weeds normally germinate. It won't harm already planted grass or bulbs (in fact it's a great lawn fertilizer), but if you planning on re-seeding your lawn or planting flower seeds in the area you'll need to wait 6 weeks. It's usually applied at a rate of 2 lbs per 100 square feet and provides 6 to 8 weeks of control.
I have a beautiful gravel driveway but the weeds are driving me crazy (no pun intended). Do you have a low cost solution?
D Dunn from Shreveport, LA
I find that pouring boiling water on weeds helps to keep my gravel driveway quite clear. I attack them as they appear so they do not get a chance to take hold. Best of luck.
I have used the vinegar, but I used plain old kitchen vinegar. Just bring it to a boil to concentrate, let cool, put into a spray bottle. I also add some undiluted lemon juice with the vinegar.
All you have to do is dissolve ordinary table salt in some water and pour it onto each weed - make it quite strong though. I used to do this on our tennis court where the odd weed came up and it works like a charm. Happy weeding!
If I do any of these tips... will I ever have to 'reapply' again or would this be the only time? I want to take care of this and not add this to my yearly 'To Do' list.