Common Name(s): Small-flowered penstemon, Slender blue beard tongue, slender blue penstemon Botanical Name: Penstemon procerus Type: Perennial Hardiness: US zones 2 to 8 Light Requirements: Full sun Water Requirements: Average Bloom Color(s): Deep blue to blue-violet Bloom Period: June to August Height: 12 to 24 inches Spacing: 12 inches Features: Showy blooms, drought tolerant Precautions: None known Seeds per packet: 20