Hydrangea Pruning Timing and Fertilizer-Induced Bloom Failure

Diagnosing Non-Flowering Hydrangea in Southern California

A Mission Viejo gardener's 4-foot hydrangea produced only leaves after weekly Miracle-Gro for acid-loving plants spring through early summer. Asks about October pruning.

Fertilizer Caused Bloom Failure

Ed Gulliksen identifies high-nitrogen Miracle-Gro as the culprit—promotes foliage, suppresses flowering. Fertilize only 2-3 times yearly.

Pruning Guidance

• Proper time: after flowering – Not fall or spring
• Light fall pruning acceptable – Remove only ~1 foot if needed
• Spring pruning not advised – Removes flower buds

Correct fertilization and pruning timing restore blooms.