The Story
Plant Bio
Penstemon 'Stapleford Gem' is a semi-evergreen perennial with upright stems bearing lance-shaped, green leaves and panicles of large, tubular, lilac-blue flowers with white throats.
This popular hybrid is prized for its large, showy flowers and long blooming period. It has received the RHS Award of Garden Merit.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
12 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Moderate, drought-tolerant once established
Humidity
Average garden humidity
Lifespan
Short-lived perennial
Native To
Garden origin
Toxicity
Non-toxic to humans and pets
Planting
How to Grow
- Tuck seeds into well-draining soil in early spring for best germination.
- Mist cuttings lightly to maintain moisture, avoiding overwatering.
- Transplant seedlings when they are sturdy and have developed several leaves.
- Fertilize with a balanced, slow-release fertilizer during active growth.
- Prune to promote bushier growth and remove spent flowers to encourage rebloom.
- Mulch around plants to retain moisture and suppress weeds.
Pro Tip
Plant in full sun with well-draining soil for optimal flowering and health.
Keep It Thriving
Care Guide
Do
- Water regularly during dry spells 🌱
- Deadhead spent flowers to prolong blooming
- Apply a balanced fertilizer in spring
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t plant in heavy clay soil without amendments
- Refrain from excessive fertilizing which can cause legginess
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Winter Prep |
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
Stapleford Gem Beardtongue questions
What zones can Stapleford Gem Beardtongue grow in?
Stapleford Gem Beardtongue is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Stapleford Gem Beardtongue deer resistant?
Yes — Stapleford Gem Beardtongue is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Stapleford Gem Beardtongue bloom?
Stapleford Gem Beardtongue 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 Stapleford Gem Beardtongue need full sun?
Stapleford Gem Beardtongue does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Stapleford Gem Beardtongue drought tolerant?
Yes — once established (usually after the first full season), Stapleford Gem Beardtongue handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Penstemon to compare

Beardtongue Rondo
Penstemon barbatus 'Rondo'

George Home Penstemon
Penstemon digitalis 'George Home'

Foxglove Beardtongue
Penstemon digitalis

Blackbeard Beardtongue
Penstemon digitalis 'Blackbeard'

Blue Springs Penstemon
Penstemon heterophyllus 'Blue Springs'

Dark Towers Penstemon
Penstemon digitalis 'Dark Towers'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Stapleford Gem Beardtongue 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.













