Clasping Venus' Looking-Glass
Triodanis perfoliata
- Native to:
- Argentina, Bolivia, Brazil, Canada, Colombia, Costa Rica, Guatemala, Mexican Pacific Is., Mexico, Paraguay, Peru, United States, Uruguay
Judy Gallagher (www.flickr.com)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Campanulaceae
- Genus:
- Triodanis
- Species:
- Triodanis perfoliata
- USDA Symbol:
- TRPE4
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- apr,may,jun,jul
- Bloom Colors:
- purple, violet, blue
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bees, small pollinators
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Tolerates fire disturbance and often colonizes burned or disturbed open ground.
Soil Requirements
- Soil Type:
- sandy, well-drained, nutrient-poor soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- commonly found in open, disturbed areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require light for germination; surface sow and do not cover.
The above propagation data sourced from Claude AI