Dahlia variety
Black Jack
Black Jack is a semi-cactus dahlia with dark red blooms about 6–8 in across, on plants about 3.5–4 ft tall.
Listed for sale by 14 of the 157 nurseries we track.
Specifications
As nurseries list it. Shown when at least two agree.
- Type
- Semi-Cactusper 9 of 10 nurseries
- Size class
- Medium (B)per 4 of 4 nurseries
- Bloom size
- 6–8 inper 7 of 8 nurseries
- Plant height
- 3.5–4 ftper 5 of 6 nurseries
- Color
- Dark Red
- Color class
- Dark Red (DR)per 5 of 5 nurseries
Where to buy Black Jack
Checking stock at 14 nurseries...
- View listing
Avalon Lush
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Bear Creek Farm
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Budding Obsession
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Charles Avenue Flowers
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Cowlitz River Dahlias
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Emerald Angel
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Fleur Farm
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Harmony In Blooms
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Little Bear Flower Farm
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Micro Flower Farm
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Petal Creek Farm
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Spring Creek Dahlias
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Summer Meadow Dahlia Farm
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Vangies Farm
Sources: the specs above come from the listings of the nurseries under Where to buy, read in October 2026. Each is shown only when at least two nurseries agree on it. Nurseries can differ from the American Dahlia Society's registered classification; the ADS Online Classification Guide is the official record.
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