Hairy Beardtongue Plant Care
Penstemon hirsutus (L.) Willd.
Penstemon hirsutus is a species of flowering plant in the plantain family known by the common name hairy beard-tongue. It is native to southern Quebec and Ontario, as well as the eastern United States including Wisconsin, Michigan, Ohio, Indiana, Illinois, Kentucky, Tennessee, West Virginia, Virginia, Maryland, Delaware, New York, New Jersey, Rhode Island, Pennsylvania, Connecticut, Massachusetts, Vermont, New Hampshire, and Maine.
Every 7–10 days
Full sun to part shade
50–80°F
40–70%
What Is the Hairy Beardtongue?
Hairy Beardtongue (Penstemon hirsutus) belongs to the Plantaginaceae family within the Penstemon genus. Hairy Beardtongue is also known as Hairy Penstemon.
Hairy Beardtongue displays an upright, clumping perennial growth habit, reaching up to 2 inches tall with a spread of approximately 1.5 inches. Hairy Beardtongue produces tubular flowers in shades of red, pink, purple, or blue.
Leaf size: approximately 4 inches.
How Often Should You Water a Hairy Beardtongue?
Penstemon hirsutus requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–10 days
Let soil partially dry between waterings
What Light Does the Hairy Beardtongue Need?
Hairy Beardtongue thrives in full sun to part shade light conditions. The optimal light range is 2000–5000 lux. Avoid placing Hairy Beardtongue in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Full sun to part shade
2000–5000 lux
What Temperature and Humidity Does the Hairy Beardtongue Prefer?
Penstemon hirsutus grows best at temperatures between 50°F and 80°F. Hairy Beardtongue prefers humidity levels of 40–70%.
Temperature
50–80°F
Humidity
40–70%
What Soil Mix Works Best for a Hairy Beardtongue?
Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Hairy Beardtongue to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Hairy Beardtongue?
Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Hairy Beardtongue?
Hairy Beardtongue can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to rocky mountain penstemon plant care, which shares the same genus.
Fertilizing
Every 6 months
During the growing season
Is the Hairy Beardtongue Toxic to Pets and Children?
Non-Toxic
Non-toxic to humans and pets
What Pests and Diseases Affect the Hairy Beardtongue?
Hairy Beardtongue is susceptible to aphids, spider mites, powdery mildew. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
What USDA Hardiness Zone Does the Hairy Beardtongue Need?
Hairy Beardtongue grows outdoors in USDA Zone 3a – 8b. In cooler regions, grow Hairy Beardtongue as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 3a – 8b
Keep exploring plants
Hairy Beardtongue is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Penstemon genus — compare its care with other Penstemon species on PlantoScan.
Hairy Beardtongue tolerates low-light rooms and shaded spots — browse the full list of low-light plants.
More Penstemon Species
Other Penstemon species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
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