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Penstemon hybrids

Family: plantaginaceae
Common name(s): beard tongue
Hardiness ratings: USDA zone 3~9 - 8~10

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup
• Dave's Garden. Search the extensive PlantFiles database.

Links for Penstemon -

• Rainy Side Gardeners: Penstemon 'Andenken an Friedrick Han' - Plant profile compiled by two gardeners in the Pacific Northwest. Includes propagation and pruning methods, and commentary. (zone 8-10) (3 photos). Also pages for 'Blackbird', 'Dark Towers', 'Evelyn', 'Hopleys Variegated', and 'Sour Grapes'.
• Rob's Plants: Penstemon 'Cherry Sparks' - Plant profile with basic horticultural information and often personal observations. (zone 5-9) (5 photos). Also a page for 'Ruby'.