Tall white bog orchid (Platanthera dilatata) is a native North American orchid that grows up to about 1.3 m tall, with fragrant white flower spikes. It grows best in cool, wet, sunny sites such as bogs, fens and marsh edges, and is hard to keep in a garden.
Family
Orchidaceae (Orchid family)
Grows as
Orchid
Light
Full sun, Part shade
Water
Keep the soil consistently wet, as in a bog, and never let it dry out.
Soil
Cool, moist, acidic to neutral organic soil or peat; calcareous fen conditions suit it best.
Temperature
Cold-hardy to well below freezing; it needs a cold winter dormancy. Avoid heat above about 30 °C.
How easy
Hard
Safety
Not known to be toxic
Native range
Komandor Is. to U.S.A. and Mexico (N. Baja California)
Climate
temperate
About
Platanthera dilatata, known as tall white bog orchid, bog candle, or boreal bog orchid is a species of orchid, a flowering plant in the family Orchidaceae, native to North America. It was first formally described in 1813 by Frederick Traugott Pursh as Orchis dilatata.
It is sometimes called fragrant white bog orchid or scentbottle, for the smell of its flowers, described as intensely spicy or clove-like.
Uses
British Columbian Native Americans used the sweet-smelling flowers in washing themselves.
Text excerpted from the Wikipedia article Platanthera dilatata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.