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.
Legend of Symbols
Full Sun |
Part Shade |
Fragrant |
Very Low Water  |
Low Water  |
Medium Water  |
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