Description
Black Jack is a Semi-cactus dahlia. It has dark red medium-sized blooms. First grown in Austria in 2003 it has been awarded prizes at Dahlien-Konigin-Hamburg.
Available as tubers and jumbo plug plants
Dahlia ‘Black Jack’
Price range: £6.25 through £6.95
Available to order from September 2024 - Delivery Tubers: February, Jumbo Plug Plants: April 2025
Suitable for:
- Borders
- Gardens
- Beds
- Cut Flowers
Dahlia plants can only be supplied in multiples of 3.
3 separate varieties can be chosen.
Additional information
| Classification Group | Group 9C Medium Semi-cactus (MS-c) |
|---|---|
| Hardiness | H3: Half-hardy – mild winter |
| Planting Period | May to June |
| Soil Type | Well-drained, Humus-rich |
| Location | Full sun |
| Planting Depth (cm) | 20 |
| Planting Spacing (cm) | 60 |
| Flowering Period | From June until the first Frost |
| Height (cm) | 110 |
| Flower Size (cm) | 30 |
| Flower Colour | Dark Red |
| Foliage Colour | Green |
| Delivery Dates | Tubers From January to March |
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