Gentiana Species, Glaucous Gentian, Inky Gentian, Pale Gentian

Gentianaglauca

Family
Gentianaceae (jen-shun-AY-see-ee)
Genus
Gentiana (jen-shee-AN-uh)
Species
glauca (GLAW-kuh)
Synonym
Ciminalis glauca
Coilantha glauca
Dasystephana glauca
Gentiana caespitosa
Gentianodes glauca
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Smooth
Height
under 6 in. (15 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
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)
Bloom Color
Light Blue
Dark Blue
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Alpines and Rock Gardens
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
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
Patent Information
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

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Gardener's Notes:

0
positive
1
neutral
0
negative
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Calgary, AB (Zone 3b) | August 2011 | neutral

From Moss & Packer, Flora of Alberta (1959, 1983):
"Perennial with stems 3-10 cm high; basal rosette-leaves oval or obovate...Read More

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