Diagnosing Uneven Growth in Annabelle Hydrangeas: Site and Soil Factors

Annabelle Hydrangea (H. arborescens 'Annabelle') Variability

One plant thriving while others struggle indicates microclimate or soil differences:

• Compare soil drainage, compaction, pH.
• Check for root competition from nearby trees.
• Assess winter damage (exposed vs. protected).
• Verify sun hours (morning to afternoon = good).

Amend lagging plants' soil with compost, ensure consistent moisture, and monitor. They often catch up.