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PlantFiles: Glaucous Gentian, Inky Gentian, Pale Gentian
Gentiana glauca

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Family: Gentianaceae (jen-shun-AY-see-ee) (Info)
Genus: Gentiana (jen-shee-AN-uh) (Info)
Species: glauca (GLAW-kuh) (Info)

Category:
Alpines and Rock Gardens
Perennials

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)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Light Blue
Medium Blue

Bloom Time:
Late Spring/Early Summer
Mid Summer

Foliage:
Herbaceous
Smooth-Textured

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:
Unknown - Tell us

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

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to view:

By altagardener
Thumbnail #1 of Gentiana glauca by altagardener

By altagardener
Thumbnail #2 of Gentiana glauca by altagardener

By altagardener
Thumbnail #3 of Gentiana glauca by altagardener

Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral altagardener On Aug 13, 2011, altagardener from Calgary, AB (Zone 3b) wrote:

From Moss & Packer, Flora of Alberta (1959, 1983):
"Perennial with stems 3-10 cm high; basal rosette-leaves oval or obovate, about 1 cm long, rather succulent; cauline leaves 2-3 pairs, ovate or oval, 0.5-1.5cm long; calyx-lobes lanceolate; corolla 12-18 mm long, greenish blue, the lobes ovate, the plaits between the lobes entire".
Habitat: "Moist subalpine and alpine banks and ridges"; east Asia; Alaska, Yukon, western Mackenzie south to BC and Alberta.



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