My blue hydrangea is the jewel in the crown of my patio planting. Its bright flowers always capture the attention of my guests and give me a hit of dopamine whenever I go out there. But, it's well-known that it can be tricky to keep a hydrangea blue, which is why I've adopted some specific tricks to make it easier.
Growing hydrangeas successfully is already fairly particular, let alone trying to keep them blue. The color of hydrangeas is all to do with soil pH level, with acidic soil bringing out the natural blue pigment. As soon as soil pH level becomes more neutral and alkaline, these hydrangeas can turn pink. By planting mine in the right place, using an acidic soil, and applying a special amendment, I manage to keep mine a vivid blue quite easily.
