The Story
Plant Bio
Penstemon x hybrida 'Quartz Red' is a perennial shrub with upright stems and lance-shaped green foliage, producing tubular, vibrant red flowers that attract pollinators throughout the summer.
This cultivar is distinguished by its striking, deep red flowers with a hint of shimmer, and its vigorous growth habit makes it an excellent choice for border fronts and pollinator gardens.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
12 inches
Width
10 inches
Light
Full Sun
Zones
6, 7, 8, 9
Water
Moderate, drought tolerant once established
Humidity
Prefers dry to moderate humidity
Lifespan
Perennial
Native To
Garden origin
Toxicity
Non-toxic to humans and pets
Bloom period
Late spring – Late fall
In flower about 7 months of the year
Planting
How to Grow
- Tuck seeds into well-draining soil in early spring.
- Water regularly until established, about 6 weeks.
- Place in full sun for best flowering.
- Fertilize lightly in spring with a balanced fertilizer.
- Prune after flowering to promote bushiness.
- Mulch around base to retain moisture.
Pro Tip
Ensure excellent drainage to prevent root rot during winter.
Keep It Thriving
Care Guide
Do
- Water deeply during dry periods 🌱
- Prune dead flowers to encourage rebloom
- Apply a balanced fertilizer in spring
Don't
- Overwater, especially in winter ❌
- Allow soil to become waterlogged
- Neglect pruning after flowering
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Mulch | ||||||||||||
| Prune | ||||||||||||
| 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
Penstemon Quartz Red questions
What zones can Penstemon Quartz Red grow in?
Penstemon Quartz Red is hardy in USDA Zones 6–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Penstemon Quartz Red deer resistant?
Yes — Penstemon Quartz Red is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Penstemon Quartz Red bloom?
Penstemon Quartz Red typically blooms in late spring through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Penstemon Quartz Red need full sun?
Penstemon Quartz Red does best in full sun (6+ hours).
Is Penstemon Quartz Red drought tolerant?
Yes — once established (usually after the first full season), Penstemon Quartz Red 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

Blue Springs Penstemon
Penstemon heterophyllus 'Blue Springs'

Blackbeard Beardtongue
Penstemon digitalis 'Blackbeard'

Dark Towers Penstemon
Penstemon digitalis 'Dark Towers'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Penstemon Quartz Red 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.









