Dahlia imperialis
Dahlia (Species) Tree Dahlia
Dahlia imperialis or Bell tree dahlia can grow to 8-10m tall. It lies dormant through winter. Sporting pendulous flowerheads to 15cm across which are lavender in colour. It can be grown outside in the summer and the tubers lifted for the winter. It has thick, bamboo-like stems.
Contributed by @hetty
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Full sun
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Frequent watering
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Not Frost hardy
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Rich and free draining
Common name
Dahlia (Species) Tree Dahlia
Latin name
Dahlia imperialis
type
Tuber
family
Asteraceae
ph
5.0 - 7.0 Acid - Neutral
Plant & bloom calendar
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Best time to plant
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When the plant will bloom
full grown dimensions
Dahlia imperialis
Dahlia imperialis or Bell tree dahlia can grow to 8-10m tall. It lies dormant through winter. Sporting pendulous flowerheads to 15cm across which are lavender in colour. It can be grown outside in the summer and the tubers lifted for the winter. It has thick, bamboo-like stems.
Flowering Season
From Early Winter TO Mid Winter
This one flowers late in the year, around late early winter, so frost may kill the flowers in some areas. After flowering, you may cut the plant back to the ground, and new growth will shoot up in the spring.
Planting
From Early Spring TO Early Spring
Plant your tree between 8 and 12 inches deep, and mulch it heavily.