Brighten your garden with Penstemon Grandiflorus, a hardy heirloom perennial valued for its showy tubular flowers and compact growth habit. Often called Large-Flowered Beardtongue, this variety is perfect for borders, rock gardens, and wildflower plantings. Its elegant blooms attract pollinators, making it both a beautiful and beneficial addition to any home garden.
Features
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Botanical Name: Penstemon grandiflorus
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Plant Type: Perennial flowering plant
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Growth Habit: Upright, compact growth ideal for small spaces
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Bloom Feature: Showy tubular blossoms in soft pink to lavender shades
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Heirloom & GMO Free seeds
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Suitable for pollinator-friendly gardens
Specifications
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Sunlight: Full sun preferred
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Soil: Well-drained, sandy or loamy soil
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USDA Zones: 3–8
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Blooming Season: Late spring to early summer
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Mature Height: 18–30 inches tall
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Watering: Low to moderate; drought tolerant once established
Planting & Sowing Instructions
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Seed Preparation: Cold stratify seeds for 30–60 days to enhance germination.
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Sowing: Sow seeds on the surface of well-draining soil; lightly press in without covering deeply.
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Germination: Keep soil moist at 65–75°F (18–24°C); germination may take 3–6 weeks.
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Transplanting: Move seedlings outdoors after frost danger has passed, spacing 12–18 inches apart.
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Care: Water moderately, avoid overwatering, and enjoy low-maintenance blooms each season.
