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Tuberous grass pink

Calopogon tuberosus

Also called Tuberous Grasspink, Grass Pink, Grass Pink Orchid, Swamp Pink

Tuberous grass pink
Photo: D. Gordon E. Robertson, CC BY-SA 4.0

Calopogon tuberosus is a native North American terrestrial orchid that grows from a corm-like tuber in wet, open habitats such as bogs, fens and savannas. It is grown mainly by native plant enthusiasts, and its key to success is consistently wet, sunny, acidic conditions.

Family
Orchidaceae (Orchid family)
Grows as
Grass, Bulb, Perennial
Light
Full sun
Water
Keep the soil constantly moist and never let it dry out, as it grows in wet bog and seep habitats.
Soil
Acidic, wet, peat-based or sphagnum-rich mix with sand for drainage.
Temperature
Hardy in cold climates; tolerates winter freezing when dormant, typically hardy to about -30 °C.
How easy
Hard
Safety
Not known to be toxic
Native range
C. & E. Canada to EC. & E. U.S.A., Bahamas to Cuba
Climate
temperate

About

Calopogon tuberosus, the tuberous grass pink, is an orchid native to eastern North America. It is a perennial forb.

Where it grows

In the United States, it occurs from as far southwest as Texas and Oklahoma and southeast to the Florida Everglades to as far northeast as Maine and as far northwest as Minnesota. In Canada, it is found in all provinces from Newfoundland to Manitoba. It also is found in Saint Pierre and Miquelon, Cuba and the Bahamas.

Other Calopogon plants

Bearded grass-pink · Many-flowered grass-pink orchid · Oklahoma grasspink · Pale grass-pink · Grasspink

Text excerpted from the Wikipedia article Calopogon tuberosus 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.

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