Mt. Graham Spurred-Gentian

Halenia rothrockii

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Gentianaceae
Genus:
Halenia
Species:
Halenia rothrockii
USDA Symbol:
HARO5

Growth Characteristics

Life Cycle:
Annual
Growth Habit:
Forb/herb
Height:
60 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
jul,aug,sep
Bloom Colors:
greenish-white, purple

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)

Garden & Ecology Notes

Wildlife Value:
bees

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers high organic matter content

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds benefit from cold stratification; sow in fall or after cold treatment.