Bigleaf hydrangea Hydrangea 'Revolution Blue' Blue-Green - Hardy plantThe hydrangea 'Revolution Blue' (Hydrangea macrophylla) really lives up to its name. A revolutionary plant. The Magical flowers are initially bright blue. As the plant blooms, the blue leaves become greener. It's a pleasure to look at all year round! You can plant the hardy hydrangea all year round, provided temperatures have not dipped below freezing. The flowers bloom in the summer. Pruning is not necessary. Unless the bush becomes too large. Plant