Bigleaf hydrangea Hydrangea 'Ruby Tuesday' Red - Hardy plantfrom green to deep red. The colours of the hydrangea 'Ruby Tuesday' (Hydrangea macrophylla) are enchanting: The colour of the Magical flowers changes through the seasons. No matter the season, the winter hardy bush will be a real eye catcher in your garden or balcony. The flowers bloom from summer to autumn. Pruning is not necessary, unless the bush becomes too large. Plant the hydrangea in partial shade. The soil should be kept damp. Give it extra