Tree Dahlia excelsa / imperialis ‘Double White’
Bring dramatic height and pure elegance to your garden with the striking Dahlia excelsa ‘Double White’. This tree-dahlia reaches soaring heights, with hollow cane-like stems topped by abundant clusters of crisp, snowy white double blooms. The effect is architectural yet soft—a majestic feature for back borders, large-garden focal points or under tall trees where it can thrive.
Thriving in full sun to part-shade in a frost-protected site, it needs rich, well-drained soil and regular watering during the growing season. Mulch to keep the soil cool and moist. In cooler inland gardens, consider treating it as a seasonal feature or lifting the tuber for winter storage. Perfect for coastal and mild winter regions of South Africa, it delivers a “wow” factor with minimal fuss once established.
Flowering time
Late winter to spring
Position
Full sun to light shade; sheltered from strong winds
Water
Moderate to regular during active growth; reduce after flowering
Mature size
Up to approx. 2–4 m tall × ~1–2 m wide
Frost tolerance
Low to moderate – best in frost-free or well-sheltered spots
For sale in South Africa. Couriered nationwide.
Shipping Countries:
South Africa
Shipping States:
Western Cape (South Africa), Mpumalanga (South Africa), Gauteng (South Africa), Eastern Cape (South Africa), North West (South Africa), Limpopo (South Africa), Free State (South Africa), Northern Cape (South Africa), KwaZulu-Natal (South Africa)
Ready to ship in 1-3 business days
Shipping Policy
This plant/s are sold by horti.co.za direct. We will process your order within 1-3 business days.
Many of our plants can be couriered nationwide - and at checkout these options will be displayed. IF couriering doesn't come up as an option, this means that your basket contains one or more items that cannot be couriered - due to size/or practical reasons.
In this case, please either remove from your basket, or contact us for help.
For example, our horse compost cannot be sent via courier and will therefore appear as click and collect only!
NB: We normally send the plants on a Monday or Tuesday to minimise the chance they'll get stuck in a depot over the weekend.
We offer click and collect for local customers only. :-)
Refund Policy
No refunds on click & collect goods.
Normal refund policy (see terms and conditions) on other 'delivery' products.