Penstemon Grandiflorus, aka Beardstongue: A Showstopper in the Native Garden

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Introduction:
Penstemon Grandiflorus, commonly known as Beardstongue, was a standout at the Colorado Master Gardener Seed Social, captivating attendees with its striking beauty and resilience. This native perennial is renowned for its large, bell-shaped flowers and its adaptability to a range of garden settings, making it a favorite among gardeners and pollinators alike.

Unveiling Penstemon Grandiflorus
Beardstongue, belonging to the Penstemon family, is notable for its large, tubular flowers that range in color from lavender to pink, often blooming atop tall, erect stems. Penstemon Grandiflorus typically grows to about 2–3 feet in height and is known for its attractive, glossy green foliage.

Growing Beardstongue in Colorado
Penstemon Grandiflorus thrives in Colorado’s varied landscapes. It prefers full sun and well-drained soil, making it well-suited for rock gardens, borders, and native plant landscapes. This plant is particularly drought-tolerant once established, aligning with water-wise gardening practices.
Planting and Care

• Soil and Sunlight: Beardstongue does best in loose, gravelly, or sandy soil with good drainage. It thrives in full sun but can tolerate light shade.
• Watering: Once established, Penstemon Grandiflorus is drought-resistant and requires minimal watering.
• Fertilization: Over-fertilization can lead to excessive foliage growth at the expense of flowers, so it’s best to avoid high-nitrogen fertilizers.

Medicinal and Traditional Uses

• While not primarily known for medicinal properties, some Penstemon species have been used in traditional Native American medicine. However, Penstemon Grandiflorus is most valued for its ornamental qualities.

Here’s an overview of some traditional medicinal uses of Penstemon species:

1. Respiratory Ailments: Some Penstemon species have been used to treat coughs and respiratory infections. The plant was often used in teas or infusions for its expectorant properties, helping to clear mucus from the airways.
2. Gastrointestinal Issues: Infusions or teas made from certain Penstemon species were used to address stomach aches and gastrointestinal discomfort. They were believed to have soothing properties for digestive ailments.
3. External Wounds and Skin Irritations: Some tribes used Penstemon to treat wounds, sores, and skin irritations. The plant was applied topically, either as a poultice or in a salve, to promote healing and reduce infection.
4. Pain Relief: Penstemon was sometimes used for its analgesic properties to alleviate pain, particularly toothaches. The roots or leaves might be applied directly to the area of discomfort.
5. Anti-Inflammatory Uses: The anti-inflammatory properties of certain Penstemon species were utilized to reduce swelling and treat conditions such as sore throats.
6. Rheumatism and Arthritis: Infusions of Penstemon were used in some traditions to relieve the symptoms of rheumatism and arthritis, likely due to its anti-inflammatory effects.
7. Febrifuge: Some species were used as a febrifuge, or fever reducer. This use reflects the overall approach of Native American medicine to use local plant resources to manage common ailments.

It’s important to note that while these uses are a part of traditional knowledge, they are not necessarily backed by modern scientific research. Additionally, the efficacy and safety of these traditional uses can vary, and some species of Penstemon may have toxic properties if not used correctly.

Attracting Pollinators
Beardstongue is a magnet for pollinators. Its bright, nectar-rich flowers attract bees, butterflies, and hummingbirds, making it an excellent choice for a pollinator-friendly garden.

Landscape and Design
Penstemon Grandiflorus adds height, color, and texture to the garden. It is ideal for naturalistic plantings and meadows, as well as in perennial borders. Its striking flowers make it a focal point when in bloom.

Companion Planting
This Beardstongue pairs well with other drought-tolerant and native plants such as Coneflowers, Black-eyed Susans, and ornamental grasses. Together, they create a vibrant and sustainable garden environment.

Conclusion:
Penstemon Grandiflorus, or Beardstongue, is a splendid addition to any garden, offering a unique blend of visual allure and ecological benefits. Its easy care, drought tolerance, and ability to attract a host of pollinators make it a valuable plant for Colorado gardeners. Whether you’re cultivating a native plant garden or simply looking for a stunning perennial, Beardstongue stands out as a robust and beautiful choice.