I throw away coffee grounds all the time. Someone told me to put them on my indoor plants as well as my outdoor plants. Is this true? and what are the benefits of it?

5 Responses to “Is using coffee grounds good or bad for house plants ?”

  • Patrick l says:

    Coffee grounds are good around plants that like an acid soil, because they acidify the soil making it able for the plant to take up more nutrients. Coffee grounds are also beneficial for deterring pests. Check out this web addresses for more info….
    http://www.hort.purdue.edu/ext/groundsforgardening.html
    http://coffeetea.about.com/cs/crafthowtos/ht/ht_garden.htm

  • Stephanie says:

    you should let me know when you get a good answer… i want to know this too. thanks

  • GracieM says:

    Coffee grounds are great for plants that thrive in acidic soil, such as gardenias, camellias and azaleas. They will help turn alkaline soil more acidic. Earthworms love them, and you can even use diluted coffee to water your plants. Ground coffee is high in nitrogen, making it a very good mulch for fast-growing vegetables. Many organic growers swear by coffee grounds as mulches for tomato plants, both for the nitrogen boost this heavy feeder appreciates and for coffee’s ability to help suppress late blight. Coffee-ground mulch also can help reduce the ravages of slugs and snails.

    If you need mass quantities of grounds, visit your local coffee shop to see if they will save them for you.

  • Elijah C says:

    For outside plants it encourages growth especially in my tomatoes. inside the same … however the little flies like the organic breakdown of the beans similar to bananas – so it would work inside but i wouldn’t do it again.

  • RD says:

    I use them indoors and outdoors on all my plants……….
    and another use if you have a garbage disposal put them down that helps clean it,

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