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Growing Info

Scarification: Soak in water, let stand in water for 24 hours

Stratification: cold stratify for 60 days

Germination: can be sown outdoors in the fall for spring germination, sow seed 1/16" deep, tamp the soil, keep moist, mulch the seed bed

Other: can be fall sown without stratification.

Native to: Arkansas, Illinois, Iowa, Louisiana, Minnesota, Missouri, Montana, Nebraska, North Dakota, Oklahoma, South Dakota, Texas, Wisconsin

Native

Introduced

Penstemon grandiflorusPenstemon grandiflorus

Large Beardtongue, Large-flowered Beardtongue

In Stock: 3.172 lb (Total:3.171lb)

Penstemon grandiflorus

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3.17 lb SD

Details

Germination:

91%

Germination test:

Cut (Full Seed)

Purity:

96%

Seeds per lb:

165,619

Quantity:

3.17 lb

Collected in:

South Dakota

Crop year:

2013

Min. hardiness zone:

Item ID:

1819319

Characteristics

Growing Info

Scarification: Soak in water, let stand in water for 24 hours

Stratification: cold stratify for 60 days

Germination: can be sown outdoors in the fall for spring germination, sow seed 1/16" deep, tamp the soil, keep moist, mulch the seed bed

Other: can be fall sown without stratification.

Native to: Arkansas, Illinois, Iowa, Louisiana, Minnesota, Missouri, Montana, Nebraska, North Dakota, Oklahoma, South Dakota, Texas, Wisconsin

Native

Introduced

Penstemon grandiflorus, commonly known as Large-flowered Beardtongue, is a standout perennial that brings striking beauty and ecological benefits to your landscape. Native to the Great Plains, it thrives in full sun to partial shade, preferring dry conditions with well-drained, sandy or gravelly soil. Standing 2-4 feet tall, its vertical structure and silvery blue-green leaves make it a visual delight, while its lush lavender to pink tubular flowers grace your garden with a stunning display from late May through June.

This showy penstemon is not only a visual asset but also a wildlife magnet, attracting a myriad of pollinators including bees, hummingbirds, and the endangered Rusty Patched Bumble Bee. It's a recognized host plant for checkerspot butterflies and offers deer resistance, making it a low-maintenance choice for eco-conscious gardeners. Despite its rare wild sightings due to endangered status in some regions, it is a resilient landscape choice, especially for upland or shoreline restorations. Ideal for USDA zones 3-8, ensure excellent drainage and enjoy its enduring charm.