Hydrangea Pruning by Species for Newport, RI Gardens

Hydrangea pruning in Newport, RI (zone 6b) follows the same species rules as everywhere — bloom timing dictates pruning window.

New Wood Bloomers — Prune Early Spring

• H. paniculata 'Grandiflora' (PeeGee)
• H. arborescens 'Annabelle'
• Prune March-April before growth.

Old Wood Bloomers — Prune After Flowering

• H. quercifolia (Oakleaf)
• H. macrophylla (Bigleaf, Nikko Blue)
• Prune August-September after blooms fade.

Coastal RI Consideration

Zone 6b with maritime influence — old-wood bloomers (macrophylla) may suffer winter bud kill. Consider PeeGee/Annabelle for reliable flowering, or protect macrophylla with burlap.

Identify your species — the pruning rule is absolute for flowering success.