Penstemon

Name Planting Special Treatment Days to Sprout Planting Depth Seed Spacing Spacing after Thinning Soil
Penstemon (Penstemon gloxinoides) Indoors - 8 to 10 weeks before last frost. Transplant after last frost. none 20 - 30 do not cover 2 seeds per pot 18" Well drained - even gravelly site enriched with compost.