Penland’s Beardtongue: A Rare Colorado Treasure for Specialized Gardens
Meet Penland’s beardtongue (Penstemon penlandii), one of Colorado’s most exclusive native wildflowers. This isn’t your average garden center find – it’s a botanical VIP that calls some pretty unusual real estate home. If you’re drawn to rare plants with fascinating stories, this little gem might just capture your imagination.




What Makes Penland’s Beardtongue Special?
Penland’s beardtongue is a perennial herb that belongs to the snapdragon family, producing charming tubular flowers in shades of purple-blue. Like other penstemons, it’s perfectly designed to attract native pollinators with its trumpet-shaped blooms that appear in late spring to early summer. But what really sets this plant apart isn’t just its beauty – it’s its incredible rarity and unique habitat preferences.
Where Does It Call Home?
This Colorado endemic is found exclusively in the Piceance Basin region of western Colorado, where it has adapted to thrive in oil shale soils. Yes, you read that right – oil shale! While most plants would struggle in such challenging conditions, Penland’s beardtongue has made these alkaline, nutrient-poor substrates its specialty.
A Word of Caution: Rarity Status
Important: Penland’s beardtongue is critically imperiled with a Global Conservation Status of S1 and is listed as Endangered in the United States. This means there are typically fewer than 1,000 individuals remaining in the wild, with only five or fewer known populations.
If you’re considering adding this plant to your collection, please ensure you source it only from reputable native plant nurseries that propagate it ethically. Never collect from wild populations, as this could further threaten this rare species.
Growing Penland’s Beardtongue: Not for Beginners
Let’s be honest – this isn’t a plant for casual gardeners. Penland’s beardtongue has very specific needs that mirror its natural habitat:
- Extremely well-draining, alkaline soils
- Full sun exposure
- Minimal water requirements once established
- Rocky or gravelly soil conditions
- USDA hardiness zones 4-7
Garden Design and Landscape Role
If you can provide the right conditions, Penland’s beardtongue works beautifully in:
- Specialized rock gardens
- Native plant conservation collections
- Xeriscaping projects
- Educational demonstration gardens
Its compact size and unique growing requirements make it more of a collector’s plant than a landscape workhorse, but that’s part of its charm for dedicated native plant enthusiasts.
Benefits to Wildlife
Despite its rarity, Penland’s beardtongue plays an important ecological role. Its tubular flowers are perfectly suited for native bees and other small pollinators. By growing this plant responsibly, you’re not just adding a conversation piece to your garden – you’re contributing to conservation efforts for both the plant and its pollinator partners.
The Bottom Line
Penland’s beardtongue isn’t for everyone, and that’s okay. It requires specialized growing conditions, responsible sourcing, and a commitment to conservation. But for serious native plant gardeners interested in rare species conservation, it offers a unique opportunity to grow something truly special while supporting biodiversity.
If you’re new to native gardening or looking for easier alternatives, consider other Colorado native penstemons like Rocky Mountain penstemon (Penstemon strictus) or firecracker penstemon (Penstemon eatonii), which offer similar pollinator benefits with less demanding growing requirements.
Remember: growing rare plants is a privilege that comes with responsibility. Choose wisely, source ethically, and help ensure future generations can appreciate these botanical treasures.