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Penstemon grandiflorus

Family: plantaginaceae
Common name(s): large-flowered penstemon
Hardiness ratings: USDA zone 3 - 9~10

General resources

  • Wikipedia. Online encyclopedia entry (if defined).
  • Google images. Web search for photographs.
  • GRIN. Taxonomical details, with common names, distribution, and synonyms.
  • The Plant List. Taxonomical lookup

Links for Penstemon grandiflorus

  • All Things Plants - Community-assembled plant profile (2 varieties in database) (8 photos)
  • American Penstemon Society - Detailed description of the species' botanical characteristics, habitat, and native range. (1 photo)
  • Annie's Annuals - Catalog page with photo, basic horticultural information, and noteworthy features. (zone 3-10) (1 photo)
  • Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 3-9) (2 photos)
  • Illinois Wildflowers - Informative illustrated page with description and cultivation details, also covering range and faunal associations.
  • Iris' Garden - Gardener in the Netherlands presents a photo of this plant, with basic horticultural information. (1 photo)
  • Kansas Wildflowers & Grasses - Plant portrait with botanical details and description (9 photos)
  • Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (3 photos)
  • Missouri Botanical Garden - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 3-9) (5 photos)
  • Ontario Rock Garden Society - Germination information (additional information for other varieties)
  • Rob's Plants - Plant profile with basic horticultural information and often personal observations. Also seed germination records. (zone 3-9)

Penstemon grandiflorus plenus


Last updated:02 Jul 2017