Tree Dahlia

Dahlia imperialis, Asteraceae

Zones

8–11

Lifespan

Perennial

Growth

Fast

Growing Conditions

Full Sun (optimal)

Moderate

6 – 7.5

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Tree dahlia's large size creates dense shade that suppresses low-growing spring wildflowers

Tree dahlia's massive size overwhelms smaller dahlia species through light blocking and root competition

Tree Dahlia grows in USDA hardiness zones 8 through 11.

Good companions for Tree Dahlia include Mexican Fan Palm, Wild Sesame.

Design guilds with Tree Dahlia and see companion relationships visually.