What do you do with used coffee grounds? – It’s the perennial question asked after you’ve drunk your coffee.
Coffee grounds are excellent for fertilising roses and herbs. The high potassium content strengthens the plants’ natural defences and they will be less prone to pests, especially slugs and snails. Simply scatter the cold coffee grounds around the plants and after a while, mix it directly under the soil. It is good for the composition of the soil because as it decomposes it produces substances that form humus.