Hydrangea not blooming
Quick answer
If your Hydrangea is not blooming, the most likely cause is: Pruning at the wrong time (especially on macrophylla varieties that bloom on old wood) removes the flower buds set the previous year. Winter kill or severe dieback can also destroy old wood buds.
Start here:
- 1. Identify if your variety blooms on old wood (Macrophylla, Quercifolia) or new wood (Paniculata, Arborescens).
- 2. For old wood bloomers, only prune immediately after flowering in summer.
Why Hydrangea is not blooming
Pruning at the wrong time (especially on macrophylla varieties that bloom on old wood) removes the flower buds set the previous year. Winter kill or severe dieback can also destroy old wood buds.
How to help Hydrangea that is not blooming
- 1
Identify if your variety blooms on old wood (Macrophylla, Quercifolia) or new wood (Paniculata, Arborescens).
- 2
For old wood bloomers, only prune immediately after flowering in summer.
- 3
For new wood bloomers, prune in late winter or early spring before new growth begins.
- 4
Leave winter-killed stems until late spring to ensure they are truly dead before cutting.
Keep this Hydrangea from ending up not blooming again
Avoid late summer or fall pruning on old wood varieties. Use winter protection (burlap or mulch) in cold zones to protect next year's buds.