Upright Blue Beardtongue
Penstemon virgatus 'Blue Buckle'

Family: Plantaginaceae
Genus: Penstemon (PEN-stem-on) (Info)
Species: virgatus (vir-GA-tus) (Info)
Cultivar: Blue Buckle

Category:

Alpines and Rock Gardens

Perennials

Height:

6-12 in. (15-30 cm)

Spacing:

12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

Hardiness:

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun

Danger:

N/A

Bloom Color:

Blue-Violet

Violet/Lavender

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Evergreen

Other details:

This plant is attractive to bees, butterflies and/or birds

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Flowers are good for cutting

Suitable for growing in containers

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From herbaceous stem cuttings

From semi-hardwood cuttings

Seed Collecting:

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Wasilla, Alaska

Flagstaff, Arizona

Tucson, Arizona

Denver, Colorado

Hebron, Kentucky

Dracut, Massachusetts

Norton, Massachusetts

Geneva, Ohio

Kalama, Washington

Leavenworth, Washington

Vancouver, Washington

show all

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Aug 19, 2012, PlantNutPeg from Casas Adobes, AZ wrote:

I started P. virgatus from seed. It has been doing well in a pot. As it matures, I will eventually put it in the ground. However, seeing the other places where it does well, I don't think I will plant it in full sun. The Tucson sun will be too harsh for it, I think. It's been thriving in filtered shade all summer.