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PlantFiles: Ague Weed, Stiff Gentian
Gentianella quinquefolia

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Family: Gentianaceae (jen-shun-AY-see-ee) (Info)
Genus: Gentianella (jen-shee-an-EL-luh) (Info)
Species: quinquefolia (kwin-kway-FOH-lee-uh) (Info)

Synonym:Gentiana quinquefolia

One vendor has this plant for sale.

2 members have or want this plant for trade.

Category:
Alpines and Rock Gardens
Annuals
Biennials

Height:
12-18 in. (30-45 cm)
18-24 in. (45-60 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)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Dark Blue
Blue-Violet
Violet/Lavender

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Herbaceous
Smooth-Textured

Other details:
This plant is attractive to bees, butterflies and/or birds
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

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

No details have been posted.



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