Did you know the difference between pink and blue hydrangeas has to do with the level of acidity in the soil? I’ve heard that driving a rusty nail into the ground near the base of your plant works. These photos show the result of tossing the daily grind out the front door! I’ve been quietly conducting a little experiment: every morning for the last two years, the grounds from our daily brew are added to the soil around our hydrangeas. The results are mixed.
While we have more blue blooms, we have pink ones, too – even on the same plant! I think I’ll add a nail to the soil and report back after the next bloom cycle. Hydrangea mavens, please weigh in here. Thanks!
Photos by: Lisa Keating