Greater Roundleaved Orchid
Platanthera orbiculata var. macrophylla
- Native to:
- Canada, Prince Edward I., United States
GBIF: Desmond MacNeal
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Orchidaceae
- Genus:
- Platanthera
- Species:
- Platanthera orbiculata var. macrophylla
- USDA Symbol:
- PLMA9
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Epiphyte
- Height:
- 60 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- white, green
Garden & Ecology Notes
- Wildlife Value:
- moths
- Fragrant:
- Yes
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.0 - 6.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- prefers shaded forest floors
Propagation & Germination
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