Orchidaceae
Platanthera dilatata var. dilatata
Platanthera dilatata var. dilatata var. dilatata
Also known as Limnorchis foliosa, Limnorchis dilatata var. linearifolia, Limnorchis fragrans, Platanthera cylindrica
Flowering Plants · Native Plants · Native Orchid · Terrestrial Orchid · Bog Plant · Wetland · White Flowers · North America · Wildflower · Rare · Cool Climate · Orchidaceae
The tall white bog orchid is a native North American terrestrial orchid best suited to wet, acidic, humus-rich soils in cool climates and is not recommended for typical home gardens. It requires stable bog or fen-like conditions with consistent moisture and is extremely sensitive to soil disturbance or transplanting. Purchase only ethically propagated specimens and recreate its native moist meadow environment as closely as possible.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Keep soil consistently moist and cool; thrives in wet meadow or streamside conditions · Every 3-5 days during growing season
- Maintenance
- High
- Soil
- loam
- Soil pH
- 6.5–8
- Temperature
- -20°F to 90°F
- Cycle
- Perennial
Hardiness
USDA 5a-9b
Form & growth
Mature size and habit
- Mature height
- 18 in – 3 ft
- Spread
- 2 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yellow
- Foliage
- Green · Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Alaska, Alberta, Aleutian Is., British Columbia, Colorado, Greenland, Idaho, Illinois, Indiana, Labrador, Maine, Manitoba, Masachusettes, Michigan, Minnesota, Montana, New Brunswick, New Hampshire, New Jersey, New Mexico
- Attracts
- Bees, Moths
Sources: trefle, usda
More Platanthera
Related plants from the same genus
Lesser butterfly-orchid
Platanthera bifolia
Partial Sun · Moderate · Moderate
Greater butterfly orchid
Platanthera chlorantha
Partial Shade · Moderate · Moderate
Platanthera dilatata var. albiflora
Platanthera dilatata var. albiflora
Partial Sun · High · Moderate
Platanthera dilatata var. leucostachys
Platanthera dilatata var. leucostachys
Partial Sun · High · Moderate
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