White Trillium
Trillium grandiflorum
- Native to:
- Canada, United States
СССР
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Melanthiaceae
- Genus:
- Trillium
- Species:
- Trillium grandiflorum
- USDA Symbol:
- TRGR4
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Geophyte
- Height:
- 45 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- apr,may,jun
- Bloom Colors:
- white, pink
Reported Fauna Sightings
Garden & Ecology Notes
- Wildlife Value:
- ants, small mammals
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 6.5 (slightly acidic to neutral)
- Drainage:
- good drainage required
- Moisture:
- consistently moist
- Notes:
- prefers shaded forest floors
Propagation & Germination
- Stratification:
- Warm then cold/moist stratification (double dormancy) — 60–90 days
- Germination Time:
- 365–730 days
- Notes:
- Double dormancy requiring warm then cold stratification; seeds may take 2+ years to germinate. Hypogeal germination produces root first year, leaf second year.
The above propagation data sourced from Claude AI
Pre-treatment: Seeds are cold-warm-cold stratified
Establishment: T. grandiflorum is found within temperate deciduous forests of North America.
Source: npn.rngr.net
ORGHPS Germination Guide: Sow immediately, Either the viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience. Expose to fluctuation outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in the spring. Germination is improved by using GA3. * Hydrophilic; Seeds must be stored cold and moist. During 3 months @ 20° a radicle is formed. Then 4°C for at least 86 days will trigger emergence of a cotyledon which will appear as the temperature increases in spring. No more leaves are formed that year. If sown early enough, a cotyledon may emerge first spring but usually not until second spring. Keep seeds in pots for 2 years