Is coffee good for my plants?
Using used coffee grounds for plants can enrich the soil with nutrients like nitrogen, improve soil structure, and aid in water retention when done in moderation and for plants that thrive in slightly acidic conditions. Salts: Coffee grounds can contain salts, which can build up in the soil over time and become toxic to plants. Mold: Wet coffee grounds can attract mold, which can be harmful to plants. Caffeine: While caffeine is not toxic to plants in small quantities, it can be harmful if used in large amounts.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.You can fertilize your plants with coffee grounds once or twice in the growing season (spring and summer). Adding coffee grounds more frequently may affect the soil’s structure and pH, leading to root rot, leaf issues, and turning the foliage yellow, or brown at the tips.Indoor Plants That Thrive with Coffee Grounds 1. Spider Plant (Chlorophytum comosum) Spider plants thrive in slightly acidic soil, making coffee grounds an excellent supplement. They help boost growth and keep the leaves lush and vibrant.
Which plants do not like coffee?
It is important to check what plants like coffee grounds before using them in your garden. Some examples of plants that may not tolerate coffee grounds include christmas cactus, fruiting plants, and flowering shrubs. Coffee grounds are an excellent compost ingredient and are fine to apply directly onto the soil around most garden plants if used with care and moderation.Used coffee grounds add organic material to the soil, which helps to keep plants healthy and combat pests. This works equally well for plants in your yard or for your indoor plants.Not ALL plants love coffee grounds. While coffee grounds work wonders for some plants, others—like lavender, rosemary, and succulents—can suffer from the acidity and moisture retention.Coffee grounds release a good amount of nitrogen as they decompose. This is one of the three macro nutrients every plant needs for healthy growth, the other two being potassium and phosphorous. Leafy vegetables like spinach and cabbages do well with extra amounts of nitrogen.