Hummingbird Gardening Plants: Penstemon grandiflorus, Large Flowered Penstemon, Shell-leaf Penstemon

Genus: Penstemon

Species: grandiflorus

Common Names: Large Flowered Penstemon, Shell-leaf Penstemon

Type
Perennial

Height
36" to 48"

Width
18" to 24"

Hardiness
USDA Zone 9b (25 to 30 F)
USDA Zone 9a (20 to 25 F)
USDA Zone 8b (15 to 20 F)
USDA Zone 8a (10 to 15 F)
USDA Zone 7b (5 to 10 F)
USDA Zone 7a (0 to 5 F)
USDA Zone 6b (-5 to 0 F)
USDA Zone 6a (-10 to -5 F)
USDA Zone 5b (-15 to -10 F)
USDA Zone 5a (-20 to -15 F)
USDA Zone 4b (-25 to -20 F)
USDA Zone 4a (-30 to -25 F)
USDA Zone 3b (-35 to -30 F)
USDA Zone 3a (-40 to -35 F)

Light
Full Sun

Flower Color
Violet/Lavender

Bloom Period
Spring to Summer

Water
Moderate Water Requirement

Propagation
Seed
Cuttings

Image
(Image by Onewish1)
[ Comment ]

Image
(Image by Onewish1)
[ Comment ]

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