Skip to product information
1 of 6

Rocky Mountain Blue Penstemon Seeds

Rocky Mountain Blue Penstemon Seeds

SKU:1111

4.4
Rated 4.4 out of 5 stars
14

A long-lived, heirloom penstemon, Rocky Mountain Blue enhances the garden all year. Its exquisite blue-violet flower spikes attract pollinators and bloom for about a month in early summer, followed by satiny brown teardrop seedpods. In winter, the plants' evergreen basal rosettes turn from green to reddish purple. An easy to grow, very hardy and drought-tolerant choice for both wildflower plantings and formal garden borders.

Regular price $2.69
Regular price Sale price $2.69
Sale Sold out

~0.35 g

(~300 seeds)

Shipping calculated at checkout.
View full details
  • Variety Info
  • Sowing Info
  • Learn More

Variety Info

Family: Plantaginaceae

Native: Colorado, Wyoming, New Mexico, Arizona, Utah

Hardiness: Perennial in USDA zones 4–9

Exposure: Full sun to part shade

Bloom Period: Early summer

Plant Dimensions: 24"–36" tall

Variety Info: Brilliant, 1" blue-violet, tubular flowers

Attributes: Attracts Hummingbirds, Attracts Pollinators, Cut Flower, Deer Resistant, Drought Tolerant, Heat Tolerant

Non GMO Project

Sowing Info

When to Sow Outside: 6 to 8 weeks before your average last frost date or late fall.

When to Start Inside: 6 to 8 weeks before your average last frost date. Germinates best in cooler soils (near 55°F).

Days to Emerge: 14–35 days

Seed Depth: ⅛"

Seed Spacing: A group of 3 seeds every 18"

Thinning: When 2" tall, thin to one every 18"

Your hardiness zone is

4.4
Rated 4.4 out of 5 stars
Based on 14 reviews
Total 5 star reviews: 12 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 2
Rating
Ratings
Which best describes you as a gardener?
Which best describes you as a gardener?
14 reviews
  • Keifer B.
    Verified Buyer
    Rated 5 out of 5 stars
    6/9/24
    5 Stars

    Love you guys, great products!

    Which best describes you as a gardener? Intermediate
  • Michelle M.
    Rated 5 out of 5 stars
    5/17/24
    5 Stars

    I grew this in some milk jugs for winter sowing last year then transplanted them to a raised garden bed. They were very leafy and healthy but no flowers. I almost forgot what they were. This season they came roaring back and now have flowered out beautifully. It's taller than my kindergartener. I'm going to move it to another more permanent part of my yard. I hope I don't kill it by doing that but this bad boy is getting big. I still can't believe it came from a seed packet. Highly recommend just be patient.

    Which best describes you as a gardener? Beginner
  • Shraddha S.
    Rated 5 out of 5 stars
    5/6/24
    5 Stars

    Beautiful perrenial for zone 6 garden. I grew the seedlings with wintersowing method 2 years ago. The colors are so pretty. Extremely easy to grow, and thrives on neglect. Does well withh drought and poor soil.

    Which best describes you as a gardener? Intermediate
  • Kerri
    Verified Buyer
    Rated 5 out of 5 stars
    11/11/23
    5 Stars

    Love the delicate reliable flowers on penstemon.

  • Denise H.
    Verified Buyer
    Rated 5 out of 5 stars
    10/14/23
    5 Stars

    I always get great service from Botannical Interests! I will definitely continue to order from them.