Dahlia imperialis
Dahlia imperialis is the giant "tree dahlia" that reaches 10-20 feet tall with late late lavender blooms 3-4 inches wide.
Dahlia imperialis, the giant tree dahlia, is native to Mexico and Guatemala where it can grow up to 30 feet tall! In cultivation it more commonly reaches 10-20 feet. It is a very late bloomer with 3-4 inch wide, single, lavender flowers. This imposing oddity is hardy in coastal BC if grown in warm microclimates protected from winter rain such as up against the foundation of the house. Or grow it in a large pot and place as a specimen in the garden. It likely will not flower if grown outdoors year round though the imposing size is a great subtropical garden feature. If in a pot it can be brought into a greenhouse, sun room, or bright window where it will usually flower in the winter.
Common Name: Tree Dahlia - [Summer B&B Pre-Order]
Family: Asteraceae (The Asteraceae Family)
Zone Hardiness: 8-11
Light: Full Sun
Height: 2-4'
Width: 12-24"
Primary Bloom Colour: Purple
Secondary Bloom Colour: Orange
Bloom Time: Fall - Winter
Foliage Colour: Green
Class: Deciduous
Type: Perennial
Soil Moisture: Average, Dry
Stem Colour: Red
Fragrance: No
Berries:
Benefits: Bees, Butterflies
Deer Resistant: Unknown
BC Native: No
Native Habitat: Native to Mexico, where they grow in sharply draining uplands and mountains characterized as "pine-oak woodland" that does not experience frost.
Award:
Geographical Origin: North America, Central and South America
