Add a stunning spike of true blue to your garden with our Rocky Mountain Penstemon seeds. This beautiful North American native wildflower is celebrated for its tall, stately spires of vibrant, blue-violet, tubular flowers. A true showstopper in any garden, it is also a magnet for pollinators, attracting hummingbirds, bees, and butterflies all summer long. A tough, low-maintenance, and drought-tolerant perennial, Rocky Mountain Penstemon is a perfect choice for adding color and height to a xeriscape, meadow, or any sunny garden border.
⭐ What you'll love
- Tall, stately spires of vibrant, true blue-violet flowers.
- A magnet for pollinators, especially hummingbirds and native bees.
- A very hardy and drought-tolerant native plant, perfect for low-water gardens.
- A long-lived perennial that provides a reliable show of color year after year.
🌿 Seed details
- Plant Name: Rocky Mountain Penstemon (Penstemon strictus)
- Seed Quantity: Approx. 100 seeds
- Type: Heirloom, Open Pollinated, Non-GMO
- Lifecycle: Perennial
- Height: 2-3 feet
- Days to Maturity: Blooms in the second year from seed.
- USDA Zone: 4-9
- Origin: American Grown
🌱 Growing instructions
- Sowing: The easiest method is to sow seeds outdoors in the fall. The seeds will be naturally stratified over the winter and will germinate in the spring.
- Stratification: To plant in the spring, seeds require a 30-60 day period of cold, moist stratification in the refrigerator before sowing.
- Depth: Press seeds into the surface of the soil, as they need light to germinate. Do not cover.
- Spacing: Space or thin plants to 18-24 inches apart.
- Light Requirement: Full Sun.
- Soil: Must have excellent drainage; thrives in sandy or gravelly soil.
✅ Our seed packets
- Professionally designed and made.
- Resealable for convenient, long-term storage.
- Eco-friendly and recyclable (contains no plastic).
- Includes full, detailed growing instructions.
- Vigorously tested to ensure the highest germination rates.
- Custom packets for weddings, baby showers, or events are available. Just message us!
🚚 Shipping
- FREE SHIPPING on all orders of $35 or more.
- Flat Rate shipping no matter how many seeds you order.
- Tracking is included with every order.
Need help planning your garden? Download our seed starting resources:
Cottage Cutting Garden Handbook
Winter Sowing 101
Bloom Time Guide
Direct Sow Cottage Garden Plan
Cottage Garden Plans
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