Tree Dahlia ‘Double White’

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.