Some flowering plants, like hydrangeas, change color depending on the pH level of the soil. Adding coffee grounds will reduce the pH level and give you bright blue flowers.
Keep the Slugs Away
Unlike worms, slugs, snails, and other bugs don’t like the acidity of coffee and Won’t cross the ground if it’s sprinkled with java.
Grow Your Own Mushrooms.
ou can grow the funnest fungi around with just some coffee grounds and mushroom spores. Learn how here.
Increase Your Carrot and Radish Harvest.
Mixing coffee grounds with the seeds before you plant carrots and radishes will keep pests and bugs away and increase your harvest.
Bring on the Worms
Worms might not be the best pets, but they are great for your garden; they turn the soil and fertilize it with their own body processes. Worms are attracted to coffee grounds, so adding it to your garden beds will attract more of these helpful creatures.
Enhance Your Compost Pile
Coffee grounds will add much-needed nitrogen to your compost bin. Just pour them in get decomposing.
Keep Cats Out.
Tired of your neighbors cats traipsing through your flowers? Just sprinkle some coffee grounds and orange peel where you don’t want them to walk.
Freshen Your Flower Vases
Using a coffee-soil mix for your flower vase not only looks cool and lengthens your cut flowers’ life, it also acts as an air freshener in the room. Directions here.