PatternBaseScotch Broom
Cytisus scoparius, Fabaceae
Zones
5–8
Layer
Shrub
Lifespan
Perennial
Growth
Fast
Guild Roles
Mulch MakerNitrogen Fixer
Growing Conditions
Sun
Full Sun (optimal)Partial Sun (acceptable)
Water
LowLow
Soil pH
5 – 7.5
Tolerances
Drought
Frost
Heat
Pest Resistance
Disease Resist.
Companion Plants
Antagonistic Plants
Wild StrawberryFragaria vesca
Scotch broom can inhibit strawberry growth through allelopathic compounds and light competition
Common LilacSyringa vulgarisScotch broom produces alkaloids and quinolizidine compounds that can inhibit growth of nearby woody plants including lilacs through allelopathic effects and aggressive root competition.
Uses
Functions
Nitrogen FixationWildlife Habitat
Common Questions
What zones does Scotch Broom grow in?
Scotch Broom grows in USDA hardiness zones 5 through 8.
Is Scotch Broom a nitrogen fixer?
Yes, Scotch Broom is a nitrogen fixer and can help provide nitrogen to neighboring plants in a guild or polyculture.
What are good companion plants for Scotch Broom?
Good companions for Scotch Broom include Hazelnut, Panicle Hydrangea.
Design guilds with Scotch Broom and see companion relationships visually.
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