Bottle Gentian
Gentiana clausa
- Native to:
- Canada, United States
iNaturalist: © lindsfein (iNaturalist #136585243)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Gentianaceae
- Genus:
- Gentiana
- Species:
- Gentiana clausa
- USDA Symbol:
- GECL
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Drought Tolerance:
- Low
- Bloom Months:
- aug,sep,oct
- Bloom Colors:
- blue, violet
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
Reported Fauna Sightings
Bees: Common eastern (Bombus impatiens), Northern amber bumble bee (Bombus borealis)
Garden & Ecology Notes
- Wildlife Value:
- bumblebees
- Deer Resistant:
- Yes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–42 days
- Notes:
- Seeds require light for germination; sow on surface and do not cover. Cold stratification improves germination rates.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.
Source: Claude AI
ORGHPS Germination Guide: Expose to fluctuation outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in the spring. * avoid pricking out individually, transplant seedlings in clumps