Black Widow is a compact agave with narrow, sword-like green leaves whose edges peel into long, curly white threads, like a fine spider's web. It forms a tidy, symmetrical rosette about a foot tall.
It is very drought tolerant and slow growing, ideal for containers, rock gardens and succulent displays. Like all agaves, it blooms only after many years, and the main rosette dies after flowering.
What it looks like
Narrow, stiff, sword-shaped leaves about ½ inch wide are dark green with thin white markings and sharp terminal spines. Long, curly white fibers peel from the leaf margins and drape across the rosette like cobwebs. The leaves radiate evenly to form a compact, symmetrical, rounded rosette 12 to 16 inches tall and 18 to 22 inches wide. The overall effect is a spiky green ball wrapped in fine white threads.
Growing it with lavender
Like lavender, it wants full sun and sharp drainage, so set it in a container on a gravel patio or among the lavender beds for summer, where its blue-gray rosette echoes lavender's foliage, then move it indoors for winter.
Care
Plant in full sun in gritty, very fast-draining soil and allow it to dry completely between waterings. Hardy in zones 9 to 10. In the Great Lakes region, grow it in a pot of fast-draining cactus mix and bring it indoors to a bright, cool window before frost; water deeply only when the soil is completely dry.
At a glance
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Botanical name: Agave schidigera
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Flower color: Rarely flowers (once after many years)
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Foliage: Dark green with white threads
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Growth habit: Compact, symmetrical rosette
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Mature size: 12–16 in tall × 18–22 in wide
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USDA hardiness zones: 9–10
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Light: full sun
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Deer resistance: Resistant
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Pollinator value: Low
Sizes and shipping
One full 72-cell plug tray: 72 young starter plugs of this variety (cells about 1⅓ in. wide × 2½ in. deep), rooted and ready to pot up into quarts or gallons. Best for growers and nurseries. Potted plants and plug trays ship during our live-plant seasons, March 1–May 31 and October 1–November 30; June through September is local pickup only. Plugs, potted plants and trays do not ship to AZ, CA, HI, ID, NV, OR, UT or WA.
Shipping note: Tender succulent; can suffer cold damage in transit and rot if kept wet, so ship in warm weather and pot promptly in dry, fast-draining mix.