Tree Dahlia
Imperialis Double White
-
5-10cm -
Full Sun
5-10cm 
Full SunDahlia Imperialis Double White
Dahlia Imperialis is no ordinary Dahlia. Often called a Tree Dahlia, it sends up towering, bamboo-like stems topped with lush foliage before flowering later in the season. Large clusters of fluffy, double white blooms hang gracefully from the upper branches, creating an impressive display well above head height.
Give it plenty of room, shelter from strong winds and sturdy support. In warmer areas it can grow into a huge architectural plant, although flowering may be cut short in colder regions by early frosts.
Height: Approx. 2.5–4m
Flower size: Approx. 10–15cm
Type: Double Tree Dahlia
Flowering time: Late summer through to autumn
Position: Full sun to light shade
Best for: Sheltered gardens, back borders and statement planting
- The best time to plant Dahlias here in NZ is September or October, but can be planted anytime from mid August through to late December.
- Dahlias love sun ,so choose a nice sunny spot in your garden. Ideally a spot that gets at least 4 hours of full sun a day.
- Dahlias will grow in almost any soil, but prefer well drained loamy soil conditions.
- Prepare the ground a few weeks before planting by digging over the soil thoroughly and adding a little well rotted compost and an application of general fertiliser.
- Before planting the tubers, apply stakes (for larger varieties) staking after planting damages roots and tubers.
- Plant your Dahlia tubers about 5-10cm deep and about 50cm apart with the eye facing upwards. Water well and keep moist being careful not to over-water.
For a full overview of how to plant Dahlias visit our Gardeners Guide.
We’ve answered some of the common questions about buying our bulbs and the payment/delivery process. We want you to buy with confidence, so if your question is not answered in our FAQ please don't hesitate to ask!
Related Products
