Unlike traditional mophead hydrangeas that bloom only on old wood, 'Penny Mac' is a remontant (reblooming) variety that forms flower buds throughout the growing season. You can prune it now without sacrificing next year's flowers.
Early summer blooms may be reduced, but flowers will begin appearing by mid-June and continue through the season. This forgiving habit makes 'Penny Mac' and similar varieties like 'Endless Summer' ideal for gardeners who want flexibility in pruning timing.
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