Hoary/Downy Skullcap (Scutellaria incana)

Hoary Skullcap (Scutellaria incana), also called Downy Skullcap, is a hardy native perennial valued for its upright spikes of soft lavender-blue flowers and fine, downy foliage. These Non-GMO Hoary Skullcap Seeds thrive in sunny to lightly shaded areas and adapt exceptionally well to dry, poor, or rocky soils once established.

A magnet for bees and other pollinators, Hoary Skullcap is an excellent addition to native gardens, wildflower meadows, prairie plantings, and naturalized landscapes. Its compact growth habit, strong stems, and long bloom period make it a dependable performer in low-maintenance garden settings.

Features

• Produces tall spikes of lavender-blue flowers
• Highly attractive to bees and native pollinators
• Non-GMO seed quality
• Excellent drought and heat tolerance
• Upright, compact perennial ideal for native landscaping
• Fine-textured downy foliage with strong stems
• Deer-resistant growth habit
• Thrives in poor, sandy, or rocky soils

Specifications

• Botanical Name: Scutellaria incana
• Common Names: Hoary Skullcap, Downy Skullcap
• Seed Type: Non-GMO
• Plant Type: Perennial
• USDA Zones: 4–8
• Sun Exposure: Full sun to partial shade
• Soil Type: Well-drained; tolerates sandy, rocky, or dry soils
• Water Needs: Low to moderate; drought-tolerant once mature
• Bloom Time: Mid-summer to early fall
• Flower Color: Lavender to light blue
• Height: 24–36 inches
• Spacing: 12–18 inches
• Season for Planting: Spring or fall
• Germination Time: 20–40 days
• Germination Temperature: 65–75°F
• Cold Stratification: 30–60 days recommended for best germination
• Growth Habit: Upright, clump-forming
• Wildlife Benefits: Supports bees and native beneficial insects
• Maintenance Level: Low
• Landscape Uses: Meadows, prairie plantings, native gardens, borders, slopes

Planting Guide

• Soil Preparation: Use well-drained soil; avoid heavy or overly wet locations.
• Stratification: Chill seeds for 30–60 days to improve germination.
• Sowing Time: Plant outdoors in spring after frost or sow in fall for natural stratification.
• Seed Depth: Press lightly into soil; cover with a thin layer.
• Watering for Germination: Keep soil consistently moist until sprouts appear.
• Germination Window: 20–40 days depending on conditions.
• Light Requirements: Full sun for best flowering; tolerates partial shade.
• Thinning: Space seedlings 12–18 inches apart.
• Watering After Establishment: Water sparingly; overwatering is not needed.
• Seasonal Care: Deadhead lightly to encourage extended blooming.