Hydrangea macrophylla United Nations
Hydrangea macrophylla United Nations is one of the best dark blue, ultramarine, large flowered mop head hydrangea. Producing stunning flowers against lovely dark green foliage. Blue flowers in low acid soils. Or rich pink flowers in soils above a pH of 6. Preferring part shade, Hydrangea United Nations can reach between 1 and 2 meters tall. Flowers emerge on strong upright stems. And provides long lasting colour as the flowers age and develop. In acid soil there will be all sorts of violet-blue, blue, ultramarine blue, and deep sky blue colour shades. By evening a fluorescent blue colour can be seen. These plants produce a magical wealth of flowers of this variety outshine many other varieties. It is suitable for cut or dried flowers. We fertilise regularly with Earthlife Flower Blend through the growing and flowering season to ensure an abundant supply of flowers.
Soil or potting media will determine the colour of your flowers. Don't want luck to determine you hydrangea colour? Use Hyadrangea Blueing Agent or Hydrangea Pinking Agent to turn the flowers the colour you desire.