Dahlia 'Arthur Hambley' – (Decorative)
Dahlia ‘Arthur Hambley’ is a classic Giant Decorative variety, boasting enormous lavender-pink blooms that command attention in any garden border or floral display.
Standing tall at around 120cm, this robust variety produces huge, fully double flowers that can exceed 25cm in diameter. The petals are broad and slightly curved, creating a lush, full shape with a soft, silvery sheen that glows in the evening light.
Plant in full sun to maximise flowering potential, ensuring the soil is free-draining and enriched with organic matter. Due to the sheer weight of the blooms, robust staking is required from the moment of planting to prevent wind damage.
Keep the soil consistently moist but not waterlogged, and pinch out the growing tips in early summer to promote bushier growth and more flowering stems. Feed regularly with tomato fertiliser to fuel the production of its giant blooms.
Perfect for the back of the border, ‘Arthur Hambley’ creates a stunning backdrop for lower-growing perennials. Its long, strong stems make it an exceptional cut flower, where just a single stem can make a dramatic statement in a vase.
| Botanical name | Dahlia 'Arthur Hambley' |
| Flower colour | Lavender-pink |
| Tuber size | Grade I (Top Size) |
| Established height | 110–120 cm |
| Established spread | 60–75 cm |
| Plant spacing | 3 per m² |
| Leaf colour | Green |
| Habit | Upright, Bushy |
| Life cycle | Perennial (Tender) |
| Hardiness | Half hardy (Lift in winter) |
| Years to establish | 1st year |
| Sunlight | Full sun |
| Position | Sheltered |
| Suitable for | Back of borders, Cutting garden, Exhibition |
| Soil acidity | Neutral to slightly acidic |
| Soil moisture | Moist but well-drained |
| Soil type | Loam, Sand, Clay (enriched) |
| RHS Award (AGM) | Yes |
| Growing skill | Easy to grow |
| Pollinator-friendly | No (Double flowers) |
| Deer resistant | No |
Planting and Flowering Calendar
Key Features
Packed in paper
Packed peat-free
Great for Shade
RHS Award (AGM)
Good for cutting

