Small's Penstemon
Penstemon smallii
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
12 inches
Light
Full Sun, Partial Sun
Zones
6, 7, 8
Water
Low once established
Humidity
Average garden humidity
Lifespan
Perennial
Native To
Southern Appalachian Mountains
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Penstemon smallii, commonly known as Small's Penstemon, is a perennial shrub with upright, tubular flowers and narrow, lance-shaped leaves, typically displaying clusters of lavender to purple blooms in late spring and early summer. This species is notable for its drought tolerance and ability to attract pollinators such as bees and hummingbirds, making it a valuable addition to native and wildlife-friendly gardens.
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds lightly into well-draining soil in early spring.
- Mist cuttings to maintain humidity and promote rooting, taking 6 weeks.
- Plant in full sun for best flowering results.
- Water regularly until established, then drought tolerant.
- Mulch around base to retain moisture and suppress weeds.
- Divide clumps every 3-4 years in early spring for vigor.
Pro Tip
Ensure excellent drainage to prevent root rot and promote healthy growth.
Keep It Thriving
Care Guide
Do
- Water sparingly once established 💧
- Deadhead spent flowers to encourage more blooms
- Apply a balanced fertilizer in spring
Don't
- Avoid overwatering especially in winter ❌
- Don’t disturb roots during flowering
- Refrain from using heavy clay soil
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Plant | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Small's Penstemon questions
What zones can Small's Penstemon grow in?
Small's Penstemon is hardy in USDA Zones 6–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Small's Penstemon deer resistant?
Yes — Small's Penstemon is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Small's Penstemon bloom?
Small's Penstemon typically blooms in late spring to early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Small's Penstemon need full sun?
Small's Penstemon does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Small's Penstemon drought tolerant?
Yes — once established (usually after the first full season), Small's Penstemon handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Penstemon to compare
Foxglove Beardtongue
Penstemon digitalis 'George Home'
Beardtongue Rondo
Penstemon barbatus 'Rondo'
Blackbeard Beardtongue
Penstemon digitalis 'Blackbeard'
Dark Towers Penstemon
Penstemon digitalis 'Dark Towers'
Foxglove Beardtongue
Penstemon digitalis
Red Foxglove Penstemon
Penstemon digitalis 'Arabesque Red'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Small's Penstemon with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
