Empress Tree

Paulownia tomentosa, Paulowniaceae

Zones

5–9

Layer

Canopy

Lifespan

Perennial

Growth

Fast

Guild Roles

Shade ProviderMulch MakerNitrogen Fixer

Growing Conditions

Sun

Full Sun (optimal)

Water

ModerateModerate

Soil pH

5.5 – 8.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

CacaoTheobroma cacao

Shade ProvisionNitrogen Fixation

EdamameGlycine max

Shade ProvisionWind Protection

Fuzzy KiwiActinidia deliciosa

Physical SupportShade Provision

Arctic KiwiActinidia kolomikta

Shade ProvisionWind Protection

Giant Timber BambooBambusa oldhamii

Wind Protection

MandarinCitrus reticulata

Nurse PlantWind Protection

Hedge BambooBambusa multiplex

Nurse PlantWind Protection

Antagonistic Plants

Greek OreganoOriganum vulgare subsp. hirtum

Empress tree creates dense shade and may produce allelopathic compounds that suppress oregano

Woolly ThymeThymus pseudolanuginosus

Empress tree's large canopy completely shades woolly thyme and may produce growth inhibitors

CalendulaCalendula officinalis

Empress tree's large leaves and possible allelopathic effects suppress calendula growth

Uses

Functions

TimberNitrogen Fixation

Common Questions

What zones does Empress Tree grow in?

Empress Tree grows in USDA hardiness zones 5 through 9.

Is Empress Tree a nitrogen fixer?

Yes, Empress Tree is a nitrogen fixer and can help provide nitrogen to neighboring plants in a guild or polyculture.

What are good companion plants for Empress Tree?

Good companions for Empress Tree include Cacao, Edamame, Fuzzy Kiwi, Arctic Kiwi, Giant Timber Bamboo.

Design guilds with Empress Tree and see companion relationships visually.

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