
Light Needs

Mature Height

Mature Spread

Growing Zones
Pristine Blue Beardtongue (Penstemon barbatus 'Pristine Blue') is a moody blue perennial for USDA zones 5-9. This is a hardy plant and when established, it grows vigorously, requiring little maintenance. Pristine Blue Beardtongue has shiny green foliage and showy deep blue flowers that appear in late summer and continue through the early fall. This plant can reach 15-20 inches tall and spread to about 10-15 inches wide in a mounding shape.
The Pristine Blue Beardtongue is perfect for containers with adequate drainage, rock gardens and cut flower arrangements. It is drought tolerant once established and rabbit resistant. Pristine Blue Beardtongue also attracts hummingbirds and other beneficial pollinators.
Pristine Blue Beardtongue Care
Pristine Blue Beardtongue requires full sun for vigorous growth and continuous blooms. Provide it with a south, west, or eastern exposure. For best results plant Pristine Blue Beardtongue in moist, well-draining soil. However, it can tolerate neutral, alkaline or acidic soils and adapts well to poor soils. Feed this plant annually with an all-purpose fertilizer, or apply a layer of compost on the surrounding area.
Throughout the growing season, remove the spent blooms to encourage new ones to appear. Prune back the entire plant during the late fall after the blooming season has ended to prepare for winter. Clumps of Pristine Blue Beardtongue can easily be divided during the early spring months.
Pristine Blue Beardtongue Spacing
Space Pristine Blue Beardtongue about 18 inches apart when growing it in borders or a mass planting. In a container, Pristine Blue Beardtongue makes a beautiful focal point.
Pristine Blue Beardtongue Information
USDA Hardiness Zones: 5 - 9 |
Plant Type: Perennial |
Light Exposure: Full Sun (At Least 6 Hours Of Direct Sunlight) |
Mature Height: 15 - 20 Inches |
Mature Spread: 10 - 15 Inches |
Spacing: 10 - 15 Inches |
Habit: Upright |
Flower Color(s): Blue |
Flower Description: Sapphire-Blue |
Bloom Period: Summer |
Foliage Type: Herbaceous |
Foliage Color(s): Green |
Foliage Description: |
Seasonal Interest: Summer Flowering |
Watering: Low |
Resists: Rabbit |
Tolerates: Drought |
Attracts: Butterflies, Hummingbirds |
Container Role: Thriller |
Uses: Borders, Containers, Mass Planting, Specimen or Focal Point |
Features: Attracts Pollinators, Cut Flowers |
Brand: |
Common Name: Pristine Blue Beardtongue |
Other Name(s): Pristine Blue Beardtongue |
Scientific Name: Penstemon barbatus 'Pristine Blue' |
- SKU:
- 1231013080-pc
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2025 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.

Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 31th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: Idaho, AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!