Why don my bigleaf hydrangeas bloom?
Hydrangea macrophylla can fail to bloom for a number of reasons: improper pruning; a late winter freeze that nips the buds (same effect as untimely pruning); excessive nitrogen fertilizer (great stem and leaf growth, no flower buds); non-hardy (often florist) varieties planted in the garden; lack of adequate sun (this is rarely a problem). See our catalog for more information.