Eastern Smooth Beardtongue
Penstemon laevigatus
Last reviewed: September 2026
Eastern Smooth Beardtongue is a full sun forb that blooms May through July with white to pale lavender flowers. It tolerates low water and dry, well-drained soils in meadows, open woods, and roadsides across the eastern United States.
Toxicity unknown
Eastern Smooth Beardtongue (Penstemon laevigatus) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
low
Size
12"–24" H × 8"–12" W
Bloom
May, Jun, Jul
Native to
AL, CT, DE, FL and 14 more states
Pollinators
bees, butterflies
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Eastern smooth beardtongue is a native perennial wildflower that produces spikes of tubular white or pale pink flowers from May through July. This compact plant forms neat clumps with smooth, lance-shaped leaves and maintains a tidy appearance throughout the growing season.
Growing Eastern Smooth Beardtongue
Grow Eastern Smooth Beardtongue in full sun and low water. Mature plants reach 12 to 24 inches tall and spread 8 to 12 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
How to care for Eastern Smooth Beardtongue, by region
How to care for Eastern Smooth Beardtongue where it is actually grown: year-round basics plus what to do each season, region by region, with the sources for each.
Care guidance last updated: October 2026
Piedmont (includes Atlanta, GA)
Year-round
Smooth beardtongue is an easy perennial in Atlanta when it gets sun and soil that drains. It is a bit more forgiving of damp soil than other penstemons.
- Give it full sun, which means 6 or more hours a day. Part shade works too.
- Rich, loamy soil with plenty of organic matter suits it, and it handles moist spots better than most penstemons.
- Avoid soil that stays soggy, since poor drainage can cause root rot.
- It is hardy in USDA zones 5a to 9b, so Atlanta is well inside its range.
Its pale purple flower spikes and upright shape look tidy in a front bed.
Fall
Fall is a good time to plan for seed and next year's spot.
- Seed sown outdoors in fall gets its natural cold period over winter.
- Check that the planting spot will not hold water through the cooler months.
Winter
Winter needs very little. Drainage is the one thing to watch.
- Poorly drained soil is the main risk, since it can cause root rot.
- The plant is hardy to zone 5a, so Atlanta winters are not a cold problem for it.
Spring
Spring is growth time. Keep drainage good and watch for early leaf problems.
- Flowers open from May, so this is the time to make sure the bed drains well.
- Look over new leaves for spots, rust, or powdery mildew, which can show up on this plant.
- Seed needs a cold period to sprout, so spring sowing works best with seed that was chilled over winter.
Summer
Summer is bloom season through July. Atlanta humidity makes airflow and drainage the main jobs.
- Blooms run May through July, with stems 1 to 4 feet tall.
- Humid weather can bring leaf spot, rust, powdery mildew, or southern blight, so give plants room for air to move.
- Do not let the root zone stay wet, because root rot only shows up in overly wet or poorly drained soil.
Sources: NC State Extension Plant Toolbox: Penstemon laevigatus
In an HOA neighborhood
Eastern Smooth Beardtongue is an HOA-friendly choice. Maintenance level: low. Tidiness: 3 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- Dies back completely in winter
Wildlife value
The tubular flowers are particularly attractive to native bees and butterflies, providing an important nectar source during late spring and early summer.
Common questions
- When does Eastern Smooth Beardtongue bloom?
- It typically flowers from May through July, producing clusters of tubular white to pale lavender blooms on upright stems.
- What pollinators does this plant attract?
- Bees and butterflies regularly visit the flowers, drawn to the tubular shape that suits their foraging habits.
- What growing conditions suit this plant best?
- It prefers full sun and can handle part sun to part shade, thriving in low water, well-drained soils similar to open meadows and woodland edges.
- Is this plant a shrub or an herbaceous perennial?
- It is a herbaceous forb, meaning it lacks woody stems and typically dies back to the ground each year.
- Is Eastern Smooth Beardtongue HOA-friendly?
- Eastern Smooth Beardtongue is generally an HOA-friendly choice in the right placement, with low maintenance.
These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Eastern Smooth Beardtongue? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.