How to Grow Beardtongue (Penstemon) Penstemon spp.
Beardtongue plants (Penstemonspp.) range across North America and come in a kaleidoscopic array of colors suitable for a variety of different environments.
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Fancy a hot pink species for your rock garden? You got it. How about a dreamy white one tolerant of wet soils? No problem.
Within this diverse and wide-ranging genus, you can truly have all your heart desires.
Read on to find out more about growing this hardy wildflower. Here’s what I’ll cover:
What Are Beardtongue Plants?Bright, beautiful beardtongue plants bloom throughout summer. Hardy in USDA Zones 3 to 9, there’s a Penstemon for all but the most extreme climates.
Candy floss pink, indigo blue, or white with purple polka dots, these wildflowers attract lots of different pollinators with their colorful displays.
Belonging to the plantain family, Plantaginaceae, the beardtongues are one of the largest genera of plants native to North America.
Boasting around 270 species, these plants are endemic in every state in the USA except Hawaii, and present in almost every province in Canada. A few species range as far south as Guatemala.
Formally classified in the foxglove family, Scrophulariaceae, the beardtongues certainly look more like the snapdragons and figworts also in this group. They have the same long, tubular flowers, and slender, protruding stamens which give them their common name.
However, recent DNA evidence revealed the genus Penstemon is actually more closely related to the lowly plantains, the bane of every lawn-loving gardener in the world.
The beardtongues may be either herbaceous plants or
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