Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Gentianaceae

Genus:

Gentiana

Species:

Gentiana × grandilacustris

USDA Symbol:

GEGR5

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

60 cm

Light Requirements:

Full Sun

Drought Tolerance:

Low

Bloom Months:

aug,sep,oct

Bloom Colors:

blue, violet

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:

bees, butterflies

Deer Resistant:

Yes

Soil Requirements

Soil Type:

moist, well-drained loamy soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

consistently moist

Notes:

Prefers cool, alpine-like conditions

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–90 days

Germination Time:

14–56 days

Notes:

Requires light for germination; sow on surface. Cold stratification improves germination rates significantly.

The above propagation data sourced from Claude AI