Penstemon xylus 'Tushar Blue', commonly known as Tushar Blue Penstemon, is a compact, drought-tolerant perennial native to high elevations, known for its brilliant sky-blue to violet tubular flowers and silver-green, narrow foliage. This variety thrives in dry, rocky soils and adds a splash of vivid color to xeric or alpine-style gardens.
Its upright stems bloom profusely in late spring to early summer, attracting pollinators like bees and hummingbirds. Because of its compact size and durability, it’s ideal for rock gardens, border edges, and containers where its striking blooms can be appreciated up close.
Key Features:
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Flowers: Showy sky-blue to violet tubular flowers bloom on short spikes in late spring to early summer.
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Foliage: Narrow, silvery-green leaves form a tidy mound at the base.
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Growth Habit: Compact and clump-forming; typically grows 8–12 inches tall and 10–15 inches wide.
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Light Requirements: Full sun is best for strong flowering and compact growth.
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Soil: Prefers well-drained, gravelly or sandy soils; excellent for dry gardens and slopes.
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Hardiness: USDA zones 4–8.
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Maintenance: Very low. Deadhead after bloom to encourage additional flowering; avoid overwatering.
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Uses: Rock gardens, alpine gardens, borders, containers, native plantings, and water-wise landscapes.
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Wildlife: Attracts hummingbirds and native bees; deer and rabbit resistant.
