Spring is when many gardeners get the itch to prune—but with hydrangeas, timing and technique matter. Prune the wrong type at the wrong time and you may sacrifice blooms for the season. Here’s a clear, confidence-building guide to spring pruning, tailored to the hydrangea types most commonly sold through retail and online nurseries.
Step One: Know Your Hydrangea Type
Hydrangeas fall into two main pruning categories—old wood bloomers and new wood bloomers. Before you make a single cut, identify which group you have.
Bigleaf & Mountain Hydrangeas (Old Wood)
(Hydrangea macrophylla & Hydrangea serrata)
These classic mophead and lacecap hydrangeas set flower buds the previous summer.
Spring pruning rules:
-
❌ Do not hard prune in spring
-
✅ Remove only winter-damaged or dead stems
-
✅ Cut just above a healthy, green bud
-
✂️ Shape lightly after flowering if needed
Why it matters: Cutting too much in spring removes the buds that would have become this year’s flowers.
Oakleaf Hydrangeas (Old Wood)
(Hydrangea quercifolia)
Loved for their bold foliage and fall color, oakleaf hydrangeas also bloom on old wood.
Spring pruning rules:
-
Minimal pruning only
-
Remove dead or broken branches
-
Avoid size reduction until after flowering
Smooth Hydrangeas (New Wood)
(Hydrangea arborescens — including ‘Annabelle’ types)
These are some of the most forgiving hydrangeas and bloom on new growth.
Spring pruning rules:
-
✔️ Can be cut back hard in early spring
-
✔️ Prune to 12–24 inches tall
-
✔️ Encourages strong stems and larger blooms
Panicle Hydrangeas (New Wood)
(Hydrangea paniculata — including ‘Limelight’ types)
Excellent for landscapes and mail-order shipping, these thrive with spring pruning.
Spring pruning rules:
-
✔️ Prune before new growth emerges
-
✔️ Reduce by up to one-third
-
✔️ Focus on shaping and removing weak stems
Pro Tips for Spring Success
-
Always use clean, sharp pruners
-
If unsure, prune less—you can always cut more later
-
Feed after pruning to support strong new growth
-
Mulch to protect roots and retain moisture
When in Doubt, Ask Before You Cut
Many hydrangeas look similar when dormant, which is why pruning mistakes are common. If you purchased your hydrangea through BringMeATree.com, check the product description or reach out before pruning—we select and sell varieties with long-term landscape performance in mind, and we’re always happy to help you protect your blooms.
Healthy plants start with informed cuts—and spring is the perfect time to get it right.