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Shrub · Easy

How to Grow Forsythia

Forsythia × intermedia

Your complete guide to growing Forsythia.

☀SunFull sun to partial shade (4-6+ hours)
💧WaterLow to moderate, very drought tolerant
🗺Zones5–8
📏Height3-10 feet
Forsythia📷 Wikimedia Commons

When to Plant Forsythia

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

ZoneStart IndoorsDirect SowHarvest
Zone 5 — — —
Zone 6 — — —
Zone 7 — — —
Zone 8 — — —

Companion Plants for Forsythia

✓ Good companions

Azaleas

Similar soil and light requirements, complementary spring flowering periods

Clematis

Can use forsythia as natural support structure while adding summer blooms

Daffodils

Bloom simultaneously with forsythia, complement yellow flowers, and deter rodents

Hostas

Provide attractive foliage contrast after forsythia blooms fade

Lilacs

Compatible growth habits and bloom timing extends spring flowering season

Perennial Grasses

Provide textural contrast and help prevent soil erosion around shrub base

Spirea

Similar pruning requirements and complementary flowering times

Tulips

Sequential blooming extends spring color display and both prefer well-drained soil

✗ Keep away from

Black Walnut

Produces juglone which is toxic to many plants including forsythia

Large Evergreens

Create too much shade and compete for nutrients, reducing forsythia bloom quality

Mint

Aggressive spreading nature can overwhelm forsythia root zone and compete for nutrients

Notes from the garden

A greener inbox, occasionally.

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