Largeflowered Wintergreen
Pyrola grandiflora
- Native to:
- Canada, Greenland, Iceland, Labrador, Russia, United States
Kim Hansen





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Ericaceae
- Genus:
- Pyrola
- Species:
- Pyrola grandiflora
- USDA Symbol:
- PYGR
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Subshrub
- Height:
- 20 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- white, cream
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bees, bumblebees
- Deer Resistant:
- Yes
- Fragrant:
- Yes
Soil Requirements
- Soil Type:
- moist, well-drained, organic-rich soil
- pH:
- 4.5 - 6.5 (acidic to slightly acidic)
- Drainage:
- good drainage required
- Moisture:
- consistently moist
- Notes:
- prefers cool, shaded forest floors
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Notes:
- Seeds are dust-like and require mycorrhizal association for successful germination; very difficult to germinate without symbiotic fungi.
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