If you are looking for an easy way to acidify your soil to give acid-loving plants such as blueberries, azaleas and rhododendrons a little boost this growing season, grab the coffee grounds.
By adding a little bit of coffee grounds to your soil every month, you’ll help keep the pH of the soil on the acidic side. Your plants won’t thrive unless they’ve got the nutrients they need.
If you don’t drink coffee and you don’t have a bunch of coffee grounds laying around, no problem. Starbucks bags up their used coffee grounds as they go and gives them away for free. The Starbucks closest to me sets them by the front door in a bucket with a sign that says “Free Coffee Grounds for your Garden.”
I also tested my soil back in April and was surprised to find out my soil was pretty neutral. I guess all that fresh chicken fertilizer I use really does keep my soil in check. Who knew?