Bigleaf hydrangea Hydrangea 'Summer Love' Red - Hardy plantThe hydrangea 'Endless summer Summer Love' (Hydrangea macrophylla) could make this an unforgettable summer. This beautiful hydrangea blooms with raspberry red flower bulbs on branches that are either one or two years old. 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 the hydrangea in partial