It all comes down to soil pH. There's an old gardening myth that you can turn hydrangeas blue by burying pennies or nails in the soil. Unfortunately, this particular wisdom isn't true, but there are ...

Blue is one of the most sought-after colors in the garden. It's cool, calming, and just rare enough to feel special. In fact, fewer than 10% of flowers fall into the blue or blue-ish category, which ...