Blue Glow forms a single, beautifully symmetrical rosette rather than clusters of smaller ones. Its chalky blue-green leaves are edged in deep red and yellow bands that glow when backlit by the afternoon sun.
It is a fairly small agave, 1 to 2 feet tall, so it fits nicely in containers and rock gardens. The leaves are smooth, with only tiny soft teeth along the edges and a short red tip spine.
What it looks like
Smooth, fleshy, lance-shaped leaves are a chalky blue-green, each edged with a thin deep red line backed by a narrow yellow band, lined with tiny soft teeth and tipped with a short red spine. The leaves radiate from the center in a single, perfectly symmetrical rosette 12 to 24 inches tall and 24 to 36 inches wide. When backlit, the red and yellow margins glow like neon outlines. The rosette looks like a large, open blue-green star.
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 lean, very fast-draining soil and water only when dry. Hardy in zones 8 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
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Flower color: Rarely flowers (once after many years)
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Foliage: Chalky blue-green with red and yellow margins
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Growth habit: Single, symmetrical rosette
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Mature size: 12–24 in tall × 24–36 in wide
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USDA hardiness zones: 8–10
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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.