Penstemon gracilis

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Penstemon Gracilis 5 Penstemon Gracilis 4 Penstemon Gracilis 3 Penstemon Gracilis 2 Penstemon Gracilis Penstemon Gracilis 6
Penstemon Gracilis 5 Penstemon Gracilis 4 Penstemon Gracilis 3 Penstemon Gracilis 2 Penstemon Gracilis Penstemon Gracilis 6

Penstemon gracilis

Common Name: Slender Beardtongue

Slender Beardtongue is a delicate perennial reaching heights of 8 to 18 inches, featuring tubular, pale purple to lavender flowers that bloom in early to mid-summer. It thrives in prairies, open woodlands, and dry slopes, preferring well-drained sandy or loamy soils. This species is an excellent choice for pollinator gardens, attracting bees and hummingbirds. It is well-suited for rock gardens, dry prairie restorations, and naturalized plantings.

Characteristics

Product Form Plant
Type Forb
Sun Full Sun, Partial Sun
Soil Sand/Gravel, Calcareous
Moisture Dry, Mesic
Average Max Height (inches) 18
Suggested Plant Spacing (inches) 12
Bloom month(s) May, June, July
Bloom Color or Type Violet
Dominance Low

Range Maps

Sowing Information

For most homeowners, the recommended method is to hand-broadcast seed at a minimum rate of 16–64 PLS (Pure Live Seed) ounces per acre. To ensure even coverage, broadcast the seed in perpendicular passes across the site. Grass seed should be broadcast first and lightly raked into the soil. Afterward, apply a light mulch layer using clean, seed-free straw or, preferably, our native Little Bluestem straw, available at our retail garden centers. Once mulching is complete, broadcast native wildflower seed over the area without raking it in. A good rainfall or thorough watering will provide sufficient soil contact for successful germination.

Planting Information

Dig a hole in your planting site slightly larger than the plant’s root system. When placing the plant into the hole, ensure that the soil line remains consistent with its original level in the pot. Fill in around the roots with the excavated soil, gently firming it to eliminate air pockets. Water the plant thoroughly the same day to promote successful establishment.