Grow Rydberg?s Penstemon (Penstemon rydbergii) with these 100mg seeds! A cold-hardy native perennial wildflower with violet-blue tubular blooms, ideal for mountain gardens, meadows, and pollinator habitats. Violet-Blue Tubular Flowers ? Elegant spikes bloom early to mid-summer Native Mountain Species ? Ideal for alpine and meadow plantings Pollinator Magnet ? Attracts bees, butterflies, and hummingbirds Cold Hardy Perennial ? Thrives in USDA zones 3?8 100mg of Seeds Included ? Cold stratification recommended for best results Common Name: Rydberg?s Penstemon Scientific Name: Penstemon rydbergii Color: Violet to blue flowers Soil Type: Moist, well-drained to rocky soils Sunlight: Full sun to partial shade Watering: Moderate; prefers some moisture Growth Habit: Upright perennial Planting Season: Fall or early spring (cold stratification improves germination) Days to Maturity: 1?2 years Plant Type: Herbaceous perennial USDA Zone: 3?8 Type: Seeds rydberg?s penstemon seeds, penstemon rydbergii, 100mg for planting native violet wildflower cold hardy perennial pollinator friendly Ships from: USA Vendor: Folia Flora