Bigleaf hydrangea Hydrangea 'Runaway Bride' White - Hardy plantRichly blooming and winter hardy! That's what you can expect from the hydrangea 'Runaway Bride' (Hydrangea macrophylla). A flower blooms on every shoot of the 'Runaway Bride'. That's why this special hydrangea blooms for months on end in our garden. 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 water during dry periods.