Do Coffee Grounds Help Houseplants. And worms seem to love them either in your garden or outdoor compost pile or in a vermicompost bin. Put coffee grounds in your compost for healthy soil and earthworms.
Coffee grounds should be used to help boost specific plants. Half a cup of coffee grounds mixed in a gallon of water makes a great liquid fertilizer for your plants whether they grow in the garden or in pots. Coffee grounds sprinkled over the ground around acid-loving plants serve as a mild acid fertilizer for them.
You can use it in the following ways.
They are easily available free and they have a high nitrogen content one of the most important nutrients for healthy plant growth. Other used for coffee grounds include using it to keep slugs and snails away from plants. Unfortunately the caffeine may also be detrimental for your plants. Coffee grounds can be useful for the growth of several plants besides roses.