Black Jack Dahlia
Description
Black Jack is an eye-catching dark dahlia, producing velvety, near-black blooms with rich burgundy undertones that add instant drama to borders and bouquets. Its full, formal decorative flowers sit on sturdy stems and read as a true “black” in the garden, making it a striking anchor for both modern and classic color schemes. A dependable bloomer through the season, Black Jack is especially effective paired with whites, blush tones, or bright hot colors for bold contrast.
Specifications
| Form | SC |
|---|---|
| Color | DR |
| Bloom size | 5.5" |
| Plant height | 5 ft |
| Hybridizer | H L Van Veelen junior |
| Year introduced | <1960 |
| Country of origin | Netherlands |
How to grow Black Jack
Black Jack is a SC with 5 ft tall with 5.5-inch blooms. Plant tubers 12–18 inches apart in full sun after the last frost. Pinch when plants reach 12 inches tall to encourage bushier growth and more blooms.
Harvest & vase life
SC-form dahlias like Black Jack harvest dahlias when blooms are three-quarters to fully open. With clean cuts and fresh water, most varieties last 4–7 days in the vase.
Where to buy Black Jack tubers
Similar dahlia varieties
- AC Ben — SC, LB
- Cheers — SC, R
- Clearview Jonas — SC, LB
- Drama Queen — SC, PR
- Fire Magic — SC, FL
- Henriette — SC, PK
Frequently asked questions
How tall does Black Jack grow?
Black Jack grows to about 5 ft.
What color is Black Jack?
DR — ADS color classification for Black Jack.
Who hybridized Black Jack?
H L Van Veelen junior, introduced in <1960.
Is Black Jack good for cut flowers?
Yes. Dahlias are among the most popular cut flowers for home and market growers. Expect 4–7-day vase life with proper hydration.