Penstemon heterophyllus Electric Blue

Foothills Beardtongue




Penstemon heterophyllus Electric Blue is a selected form of the Foothills Beardtongue, a small growing evergreen shrub from California, that blooms in late spring with a memorable display of intensely blue flowers.

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Regular Price: $9.99

Sale $8.99

Per Plant - 2.5" deep pot You save: 10%
Zones 5 - 9
Deer Resistant
Deer Resistant
Attract Hummingbirds
Attract Hummingbirds
Bee Friendly
Bee Friendly
Rabbit Resistant
Rabbit Resistant
Good for Containers
Low Maintenance
Light Requirements
Full Sun
Full Sun
Annual Rainfall
10 to 20"
Ideal Region
Only in Western US
Bloom Time Early to mid summer
Shipping Shipping begins in late February based on ground temperatures, warmest zones first. More shipping info Learn More…
Size Plant - 2.5" deep pot


15-18" tall x 10-12" wide. Penstemon heterophyllus Electric Blue is a selected form of the Foothills Beardtongue that blooms in late spring with a memorable display of intensely blue flowers. Native to CA, this species grows as a small evergreen shrub with attractive fine-textured foliage. It grows best in "lean", fast draining soil with full sun and very little additional irrigation once established. Deadheading will keep the plant tidy and the beautiful foliage in good condition.
Common Name Foothills Beardtongue
Botanical Name Penstemon heterophyllus Electric Blue
Zones 5, 6, 7, 8, 9
Light Requirements Full Sun
Flower Color Blue
Mature Height 15-18" tall
Mature Spread 10-12" wide
Bloom Time Early to mid summer
Ships As Potted Plant
Evergreen Yes
Native Yes
Planting Time Spring / Summer, Fall
Soil Type Average Soil
Soil Moisture Drought Resistant / Waterwise
Amount of Rain 10 to 20"
Advantages Deer Resistant, Attract Hummingbirds, Bee Friendly, Rabbit Resistant, Good for Containers, Evergreen, Low Maintenance
Ideal Region Western Only, Southwest, West, Pacific Northwest
Neonicotinoid-Free Yes - Learn More
Ships to Hawaii, Alaska & Canada No

Planting Guides

Tips for growing Penstemon (Beardtongue)

Penstemon are generally evergreen and have beautiful flowers that are very attractive to hummingbirds. Most varieties are rabbit resistant.

  1. They need “elbow room,” maximum sun, heat and don’t like to be crowded by other plants.
  2. Plant only in well-drained soils; clay soils and Penstemon are incompatible.
  3. Avoid overly enriched soils; too much compost and fertilizer will shorten their lifespan.
  4. They establish quickly and the amount and frequency of watering needs to be reduced after about 8 to 10 weeks to create dry conditions.
  5. When using drip irrigation, be sure to put the emitter off to the side of the plant, not right on top of the root ball to avoid overwatering the plant.
  6. Plant high, leaving the top of the rootball just above the surrounding soil to avoid burying the crown of the plant.
  7. Mulch with gravel or pine needles in arid climates. No mulch is needed where conditions are moister. Always avoid bark, grass clippings, or compost as mulch materials.
  8. Allow some of the plants to set seed (don't deadhead all of the flower spikes)*.
  9. Fertilize sparingly. One time each year in the fall is enough. Apply a light application of an organic or natural fertilizer such as Yum Yum Mix as a top dressing around the plants. Don't use high nitrogen water soluble fertilizer like Miracle Gro

*To keep penstemon that have finely textured or matted evergreen foliage looking their best, you'll want to 'deadhead" them. Shear off the fading flowering spikes just as the plant is going out of flower. Gently bunch the flower spikes together with one hand and cut them off at the point where they go down into the mat of foliage with your clipper in your other hand. Recommended for the following varieties: P. pinifolius types (‘Compactum', ‘Mersea Yellow', ‘Nearly Red', ‘Magdalena Sunshine' and ‘Tall Orange Mix'), as well as Penstemon linarioides v. coloradensis and Penstemon virens ('Blue Lips').

More in-depth guidance for growing Penstemon: Watch our video: How To Plant Penstemon or read articles: Growing Penstemon, Penstemon for the Waterwise Garden, David’s Favorite Plants: Pineleaf Beardtongue, The Beardtongue Family: Penstemania for Penstemon and The Genus Penstemon: The Royalty of American Wildflowers The Genus Penstemon: The Royalty of American Wildflowers (Part 2).

View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.


Plant Shipping: Buy now and we will ship your order at the ideal planting time for your region. Spring-Planted Perennial and Bulb orders will ship from February 27-June 30, warmest zones first.

Most plant and bulb orders arrive within 2-6 days, or less, of leaving our greenhouses in Colorado. This prompt delivery is provided without additional express charges.

Grass Plugs Will ship at planting time in spring, beginning in late February.

Wildflower Seed & Grass Seed Orders ship within 2-3 days.

Standard shipping costs are $4.99 and up, depending on the size of the order.

Make Fast Even Faster: For ‘Rush’ same week delivery, please call customer service at 800-925-9387.

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Reviewsby PowerReviews


by PowerReviews
High Country GardensPenstemon heterophyllus Electric Blue

(based on 2 reviews)

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(1 of 1 customers found this review helpful)


Beautiful plant


from Taylorsville, UT

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  • Attractive
  • Hardy
  • Healthy


    Best Uses

    • Garden
    • Outdoors

    Comments about High Country Gardens Penstemon heterophyllus Electric Blue:

    I panted this at 7000 ft. in soil that drains quickly and poor in nutrients. The first year it grew to over a foot and had blooms all over it. The hummingbirds were attracted and the plant looked like lights in the garden; spectacular in my high garden. As I finish this critique, I will order more.

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    • Personal

    (0 of 2 customers found this review helpful)


    Disappointed: it never bloomed


    from Arizona

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    Comments about High Country Gardens Penstemon heterophyllus Electric Blue:

    Wouldn't recommend.

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    • Personal

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    Q & A

    Suggested Companion Plants:

    USDA Hardiness Planting Zones

    To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

    • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
    • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

    Find Your Planting Zone:

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