Gentiana Species, Japanese Gentian, Korean Gentian
Gentianascabra

Family: Gentianaceae (jen-shun-AY-see-ee)
Genus: Gentiana (jen-shee-AN-uh)
Species: scabra (SKAY-bruh)

Synonym:Dasystephana scabra

Synonym:Gentiana fortunei

Category

Perennials

Water Requirements

Average Water Needs; Water regularly; do not overwater

Sun Exposure

Sun to Partial Shade

Foliage

Herbaceous
Smooth

Foliage Color

Unknown

Height

6-12 in. (15-30 cm)

Spacing

6-9 in. (15-22 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)

Where to Grow

Unknown

Danger

Unknown

Bloom Color

Dark Blue
Medium Blue

Bloom Characteristics

This plant is attractive to bees, butterflies and/or birds

Bloom Size

Unknown

Bloom Time

Late Summer/Early Fall

Other details

Unknown

Soil pH requirements

5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information

Unknown

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
Properly cleaned, seed can be successfully stored