Give these green friends a sprinkle of used coffee grounds (in moderation!) for happier, healthier growth.

4. Peace Lily — Helps encourage deep green leaves; apply once a month.
5. African Violets — Use a tiny sprinkle; too much can affect soil acidity.
6. Philodendron — Mix into the topsoil for stronger, vibrant leaves.
7. Aloe Vera — Only occasional use; mix into soil, not on top.
8. Christmas Cactus — A light boost during the growing season.
9. Boston Fern — Loves acidity; sprinkle grounds or make a diluted coffee-water mix.