Penstemon Species, Large Flowered Beard Tongue, Pride of the Mountain, Shell-Leaf Penstemon

Penstemongrandiflorus

Genus
Penstemon (PEN-stem-on)
Species
grandiflorus (gran-dih-FLOR-us)
Synonym
Chelone grandiflora
Penstemon bradburii
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
36-48 in. (90-120 cm)
Spacing
18-24 in. (45-60 cm)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Bloom Color
Lavender
Bloom Time
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Knik-Fairview, Alaska

Lakes, Alaska

Meadow Lakes, Alaska

Tanaina, Alaska

Wasilla, Alaska

Stockton, California

Aurora, Colorado

Colorado Springs, Colorado

Iowa City, Iowa

Pacific Junction, Iowa

Yale, Iowa

Luverne, Minnesota

Minneapolis, Minnesota

Saint Paul, Minnesota

Denville, New Jersey

MOUNT HOOD PARKDALE, Oregon

Riverton, Utah

Leesburg, Virginia

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Gardener's Notes:

1
positive
0
neutral
0
negative
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C
(Zone 5a) | June 2015 | positive

This prairie beauty resides in my native patch near the driveway. Mine were grown from seed collected in Iowa from pure untouched prairie...Read More

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