What plants should you not put coffee grounds around?
However, there are some plants that you should avoid using coffee grounds on. Plants that prefer alkaline soil, like lavender and lilacs, can be harmed by the acidity of coffee grounds. Plants that are sensitive to caffeine, such as geraniums and some herbs, can also be affected by the presence of coffee grounds. Add to soil: composted coffee grounds can be added directly to soil or potting mix to fertilize plants. Make sure to mix them in well. Use as a liquid fertilizer: a dilution of coffee grounds in water can be applied as a liquid fertilizer.Coffee grounds also contain needed plant macro and micronutrients, such as phosphorus, potassium, and magnesium, while tea leaves contain a decent level of nitrogen, a macro-nutrient that encourages leaf growth.
What animal do coffee grounds repel?
Sprinkling coffee grounds among your plants may help to ward off rabbits and other small mammals due to coffee’s powerful scent. Plus, it composts naturally over time, giving your plants some extra nutrients! Coffee grounds contain caffeine, which can be harmful to some plants. Caffeine acts as a natural pesticide, which can inhibit growth, particularly for seedlings and young plants. This is especially true for plants that are sensitive to caffeine and tolerate acidic soil poorly.