Keep soil consistently moist but not waterlogged. Deep watering 2–3 times per week is better than frequent shallow watering.

In hot weather, check soil daily and water as needed.

2. Fertilizing:

Apply a balanced, slow-release fertilizer in early spring and again in mid-summer.

Avoid over-fertilizing, which can reduce bloom production.

3. Pruning:

Bigleaf and Oakleaf Hydrangeas: Prune after flowering to maintain shape. Avoid heavy winter pruning, as it can reduce blooms.

Panicle and Smooth Hydrangeas: Prune in late winter or early spring before new growth begins.

4. Bloom Color Tips:

Soil pH: Acidic soil (pH < 6) encourages blue blooms; alkaline soil (pH > 7) encourages pink blooms.

Altering Color: Add aluminum sulfate for blue flowers or garden lime for pink. White hydrangeas are generally unaffected by soil pH.

5. Pest and Disease Management:

Watch for aphids, spider mites, and powdery mildew.

Keep leaves dry and remove any damaged or diseased foliage promptly.

Seasonal Care