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Shrub · Moderate

How to Grow French Hydrangea

Hydrangea macrophylla

Your complete guide to growing French Hydrangea.

☀SunPartial shade (4-6 hours)
💧WaterModerate — regular watering
🗺Zones6–11
📏Height3-6 feet
French Hydrangea📷 Wikimedia Commons

When to Plant French Hydrangea

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 6 — — —
Zone 7 — — —
Zone 8 — — —
Zone 9 — — —
Zone 10 — — —
Zone 11 — — —

Companion Plants for French Hydrangea

✓ Good companions

Astilbe

Thrives in same acidic, moist soil conditions and partial shade

Azaleas

Both prefer acidic soil and benefit from similar fertilization schedules

Caladium

Thrives in partial shade with consistent moisture like hydrangeas

Ferns

Prefer similar acidic, well-draining soil and provide textural contrast

Heuchera

Tolerates same light conditions and adds colorful foliage at ground level

Hostas

Share similar shade and moisture requirements, create complementary foliage texture

Japanese Painted Fern

Complements hydrangea blooms with silvery foliage in acidic soil

Rhododendron

Both are acid-loving shrubs with similar water and soil requirements

✗ Keep away from

Black Walnut Tree

Produces juglone toxin that inhibits hydrangea growth and causes wilting

Eucalyptus

Allelopathic compounds suppress nearby plant growth and competes for water

Pine Trees

Surface roots compete aggressively for water and nutrients hydrangeas need

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.