Description

Botanical Interests' Penstemon Rocky Mountain Blue Seeds (Penstemon strictus) bring year-round beauty to any garden. This heirloom perennial, native to the Rocky Mountain region, produces brilliant 1″ blue-violet, tubular flowers that bloom in early summer, attracting hummingbirds and pollinators. Following the flowers, the plant displays satiny brown seedpods, with evergreen basal rosettes that transform into a reddish purple hue in winter. With a mature height of 24″–36″, Rocky Mountain Blue thrives in full sun to part shade and is highly drought- and heat-tolerant once established. A hardy, long-lived variety, it excels in both wildflower plantings and formal garden borders, offering seasonal interest and durability.

300 seeds.

Variety Info:

Botanical Name: Penstemon strictus
Family: Plantaginaceae
Native: Colorado, Wyoming, New Mexico, Arizona, Utah
Hardiness: Perennial in USDA zones 4–9
Plant Dimensions: 24″–36″ tall
Variety Information: Brilliant, 1″ blue-violet, tubular flowers
Exposure: Full sun to part shade
Bloom Period: Early summer
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: 1/8″
Seed Spacing: A group of 3 seeds every 18″
Thinning: When 2″ tall, thin to one every 18″