✂ Cut Flower

Black Spider

Moody, near-black blooms on a strong, prolific early-season plant

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Semi-Cactus · 4–6"Red

Black Spider produces deeply saturated blooms in rich dark red to near-black tones, giving gardens and arrangements a moody, dramatic presence. Spiky, quill-like petals radiate outward with good symmetry and a bold, slightly wild texture. Plants are notably vigorous and free-flowering, making them a rewarding pick for gardeners who want dark color impact without fussing over complicated culture.

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Availability & pricing

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Specifications

Physical

Form
Semi-Cactus
Bloom class
BB4–6"
Bloom size
4–6"(10.2–15.2 cm)
Plant height
36–48"

Color

Color
Red
Pattern
Dark Blend
Tags
near-blackdark redburgundydeep crimsondark blenddramatic

Growing context

Flowering season
Early season
Cut flower
✓ Yes

Grower Profile

Difficulty

Intermediate

Ideal for

HobbyistsFlorists

Growing Black Spider

Stake plants early because stems need support once buds develop on these tall, vigorous plants. Pinch the central shoot when plants are knee-high to encourage branching and more blooms. Water deeply once a week rather than shallowly and often, and keep soil consistently moist during bud set. Feed with a low-nitrogen fertilizer once buds appear. Cut blooms as soon as they open fully to keep new buds coming.

Spacing
Space roughly 2–3 ft apart
Staking
Stake early — stems carry heavy blooms and lean in wind

Frequently asked questions

How tall does Black Spider dahlia grow?

Black Spider reaches 36–48" at maturity, so plan to stake plants early to keep heavy blooms upright.

When does Black Spider dahlia bloom?

Black Spider is an early bloomer, producing flowers from early summer until first frost.

Is Black Spider dahlia good for cut flowers?

Yes — Black Spider is well suited for cutting.

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