How to Grow Forsythia
Forsythia × intermedia
Your complete guide to growing Forsythia.
When to Plant Forsythia
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
Companion Plants for Forsythia
✓ Good companions
Similar soil and light requirements, complementary spring flowering periods
Can use forsythia as natural support structure while adding summer blooms
Bloom simultaneously with forsythia, complement yellow flowers, and deter rodents
Provide attractive foliage contrast after forsythia blooms fade
Compatible growth habits and bloom timing extends spring flowering season
Provide textural contrast and help prevent soil erosion around shrub base
Similar pruning requirements and complementary flowering times
Sequential blooming extends spring color display and both prefer well-drained soil
✗ Keep away from
Produces juglone which is toxic to many plants including forsythia
Create too much shade and compete for nutrients, reducing forsythia bloom quality
Aggressive spreading nature can overwhelm forsythia root zone and compete for nutrients