The plants that like coffee grounds include roses, blueberries, azaleas, carrots, radishes, rhododendrons, hydrangeas, cabbage, lilies, and hollies. These are all acid-loving plants that grow best in acidic soil. You’ll want to avoid using coffee grounds on plants like tomatoes, clovers, and alfalfa.
What plants are coffee grounds not good for?
In most cases, the grounds are too acidic to be used directly on soil, even for acid-loving plants like blueberries, azaleas and hollies. Coffee grounds inhibit the growth of some plants, including geranium, asparagus fern, Chinese mustard and Italian ryegrass.
What plants are harmed by coffee grounds?
Coffee grounds are highly acidic, they note, so they should be reserved for acid-loving plants like azaleas and blueberries. And if your soil is already high in nitrogen, the extra boost from coffee grounds could stunt the growth of fruits and flowers.
Do roses like coffee grounds?
Coffee grounds can be of great benefit rose bushes when used in moderation, but go sparingly. Fertilising around your roses with an abundance of coffee ground can burn the roots of your roses because of the particularly high nitrogen content.
Can you put coffee grounds in potted plants?
Coffee grounds (and brewed coffee) are a source of nitrogen for plants, which is the nutrient that produces healthy green growth and strong stems. … You can use coffee fertilizer on your potted plants, houseplants, or in your vegetable garden.
What can I do with Unbrewed coffee grounds?
- Fertilize Your Garden. Most soil does not contain the essential nutrients needed for optimal plant growth. …
- Compost It for Later. …
- Repel Insects and Pests. …
- Remove Fleas from Your Pet. …
- Neutralize Odors. …
- Use It as a Natural Cleaning Scrub. …
- Scour Your Pots and Pans. …
- Exfoliate Your Skin.