Penstemon grandiflorus
Plants Of The Southwest

Penstemon grandiflorus

Large Flowered Penstemon

Huge, lavender-blue flowers bloom on 4 ft. stalks over smooth, grey-green, fleshy basal leaves. Large Flowered Penstemon is a summer blooming perennial. Sow in fall or cold stratify. Zones 3-8.

    Zones, Sun & Water Needs: 345678


Legend of Symbols

Full Sun
Full Sun
Part Shade
Part Shade
Fragrant
Very Low Water 
Very Low Water
Low Water 
Low Water
Medium Water 
Medium Water