Pros ; s alt works as a weed killer when it dissolves into the soil around the plant roots.
Cons; Salt kills plants indiscriminately and is very environmentally unfriendly as it stays in the soil for years, so if you must use it, only use salt where you don’t want other plants to grow, such as gravel driveways. Using salt creates a problem if you or whoever takes the garden over in the future want to plant in it any time ever!
I found the best and easiest way to kill weeds growing in gravel was to use weed killers containing Glyphosate. they kill the whole plant including the roots. It kills annual and deep-rooted perennial garden weeds, including grass, docks, nettles, willow herb, dandelion and bindweed in one application with no need to reapply. A single two Litre bottle treats up to 3332 sq/m. If you are clearing just a small area store it in your shed for next season.
Always check Strength actually is 360g/l when buying concentrated Glyphosate weed-killer from other sources.
More ways to keep gravel pathways and drives weed free
Pros; simply use ordinary full strength vinegar, white is best, although any vinegar will work. Vinegar is effective and will kill the weeds, but does not discriminate so be sure not to spray it on or near plants you wish to keep.
I especially recommend this trowel for people with less natural gripping strength, and for those with arthritis and carpal tunnel syndrome, see my article here about gardening with a disability .
Cons; Unfortunately raking also stirs up the dirt that has got into the gravel creating a seed bed for new airborne weeds.
Using plastic sheeting for weed suppressants; pros and cons
It is also available in diluted form under various brand names. However, instead of using these expensive cans or sprays. I use undiluted glyphosate and dilute it myself with water for clearing weeds from driveways and other large areas. It is super concentrated and easy to apply with a watering-can
Pros ; Rakes out surface weeds and moves the gravel around making it difficult for weed seeds to germinate so preventing weed from growing.
If elbow grease isn’t for you, then you can always look down the chemical route.
Here’s a diagram:
For the small amount of weed that may appear from then on you’ll find they’re small and with a tiny bit of elbow grease can easily be pulled. Much easier to manage weeds if there are only a couple every few weeks rather than a field full.
Common gravel weeds range from grassy weeds to woody weeds. Broadleaf, henbit, purslane, chickweed, dandelions all find it fair gain when it comes to rearing their heads between the stone.
So, how to stop weeds from growing in gravel?
Well, the honest answer, you’ll never completely get rid of weeds existing in your drive. Weed seeds can travel through the air or via birds / insects. If there’s dirt, moister and sunshine then weeds will soon geminate.
However, there are precautions you can take to stop many of the weeds shooting up from the ground below. So keeping on top of keeping your gravel weed free is that little easier.
The chemical free / preventing weeds naturally.
Following these steps to prevent weed growth in gravel / gravel driveway is best achieved BEFORE you’ve laid any gravel. However, you can obviously move gravel out of the way and follow these steps (it’s just a little more tricky).
4. Another layer of Landscape Fabric.
The final step is to lay a layer of decorative aggregate. You need a decent layer (3 to 5 inches) but not too deep as this can lead to puddle and weed growth.
By laying a later of landscape fabric / weed control membrane it acts as a ground stabilizer so stone and soil do not mix.
A layer of weed control membrane making it difficult for weeds to pop through and for most weeds to bed themselves.
3. Lay Sub Base.
How to stop weeds in gravel. It’s a common sight seeing weeds in gravel driveways. If you’ve not laid a good, weed control fabric foundation or just don’t keep on top of removing those weeds that have planted themselves in the gravel, it’s not long before there’s more weeds than gravel in your drive way and the only way of getting to your car is by using a machete and dodging the man eating fly traps!
Using a compacted subbase (Granular base / hardcore base) will ensure the decorative aggregate is evenly distributed plus allowing for drainage eliminating puddles.