Foothill Penstemon, Chaparral Penstemon, Bunchleaf Penstemon 'Electric Blue'

Penstemon heterophyllus

Family: Plantaginaceae
Genus: Penstemon (PEN-stem-on) (Info)
Species: heterophyllus (het-er-oh-FIL-us) (Info)
Cultivar: Electric Blue



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


18-24 in. (45-60 cm)


12-15 in. (30-38 cm)


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)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:

Sun to Partial Shade


Unknown - Tell us

Bloom Color:


Bloom Time:

Mid Summer



Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us


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

Ashdown, Arkansas

Camarillo, California

North Fork, California

Cordele, Georgia

Hebron, Kentucky

Elizabeth City, North Carolina

Knoxville, Tennessee

Ogden, Utah

Kalama, Washington

Seattle, Washington

Charleston, West Virginia

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Gardeners' Notes:


On Apr 29, 2011, annlof from Camarillo, CA wrote:

These plants seem to like lean soil with good drainage and full sun. They are evergreen in Zone 10 (Southern California) but benefit from being cut back hard after blooming. Very drought-tolerant.


On May 30, 2010, MiniPonyFarmer from Gilmer, TX (Zone 8b) wrote:

I did not have luck with this plant in our hot and humid East Texas summer. Placed in a west facing but well amended and mulched bed, this plant could not take the heat. So I moved the remaining one to a north facing bed that receives some midday shade. It is still living, but the bottom half is brown. It did manage to bloom and the blooms were quite beautiful if you could ignore the foliage. I just don't think this plant was quite ready for Texas's type of hot.


On May 12, 2009, anelson77 from Seattle, WA wrote:

I grew these in part sun, good soil, little summer water for a couple of seasons. They bloomed profusely for a long period and were absolutely stunning, living up to their name. They seem to have died during our recent hard winter. I miss them and might have to plant more. It is worth it to grow them as an annual even if they are not fully hardy.