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Catalpa

Catalpa speciosa, Bignoniaceae

Zones
4–8
Layer
Canopy
Lifespan
Perennial
Growth
Fast

Guild Roles

Shade ProviderPollinator Attractor

Growing Conditions

Sun

Full Sun (optimal)

Water

Moderate

Soil pH

5.5 – 7.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Crimson CloverTrifolium incarnatum
Shade ProvisionNitrogen Fixation
Sweet Autumn ClematisClematis paniculata
Physical SupportPollinator Sharing

Antagonistic Plants

Golden Rain TreeKoelreuteria paniculata

Both fast-growing trees with spreading canopies compete for light and root space

Horse ChestnutAesculus hippocastanum

Both large deciduous trees create dense canopies that compete intensely for light and space

Uses

Functions

Timber

Common Questions

What zones does Catalpa grow in?

Catalpa grows in USDA hardiness zones 4 through 8.

What are good companion plants for Catalpa?

Good companions for Catalpa include Crimson Clover, Sweet Autumn Clematis.

Design guilds with Catalpa and see companion relationships visually.

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