Botanical Interests
Rocky Mountain Blue Penstemon Seeds
Rocky Mountain Blue Penstemon Seeds
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Product Details
Product Details
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.
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- Variety Info
- Sowing Info
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
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"
- Valerie D.Verified BuyerRated 5 out of 5 starsSep 16, 2025Blue penstemon
Looked great in my flower bed! The color is amazing.
Which best describes you as a gardener? BeginnerEGEpic GardeningSep 16, 2025Hey Valerie D.,
What a wonderful review! We're so thrilled to hear that your Rocky Mountain Blue Penstemon looked absolutely fantastic in your flower bed!
That amazing color you mentioned is exactly what makes this variety so special - those vibrant blue blooms really know how to make a statement in the garden! There's something so striking about that true blue color that just catches your eye and draws you right in. It sounds like they found the perfect home in your flower bed!
Thank you so much for sharing your positive experience with these beautiful penstemons. Your review will be so helpful for other gardeners who are looking to add some stunning blue color to their own gardens!
Keep on growing 🌻️
- Keifer B.Verified BuyerRated 5 out of 5 starsJun 9, 20245 Stars
Love you guys, great products!
Which best describes you as a gardener? Intermediate - Michelle M.Rated 5 out of 5 starsMay 17, 20245 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 starsMay 6, 20245 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 - KerriVerified BuyerRated 5 out of 5 starsNov 11, 20235 Stars
Love the delicate reliable flowers on penstemon.
