Feverwort
Triosteum perfoliatum
- Native to:
- Canada, United States
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Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Caprifoliaceae
- Genus:
- Triosteum
- Species:
- Triosteum perfoliatum
- USDA Symbol:
- TRPE5
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 120 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- may,jun,jul
- Bloom Colors:
- yellow, maroon, purple
Wildlife Benefits
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Adita chionanthi, Leconte's haploa (Haploa lecontei), Snowberry Clearwing (Hemaris diffinis)
Reported Fauna Sightings
Bees: Brown-belted bumble (Bombus griseocollis), Half-black bumble (Bombus vagans) Moths:Snowberry Clearwing (Hemaris diffinis), Sympistis forbesi
Garden & Ecology Notes
- Wildlife Value:
- birds
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- good drainage required
- Moisture:
- consistently moist
- Notes:
- prefers forested or shaded areas
Propagation & Germination
- Stratification:
- Warm then cold/moist stratification (double dormancy) — 60–90 days
- Germination Time:
- 30–365 days
- Notes:
- Double dormancy requiring warm followed by cold stratification. Germination can be erratic and may take over a year.
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