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Wild potato

Solanum jamesii

Wild potato
Photo: Patrick Alexander from Las Cruces, NM, CC0

Solanum jamesii, the wild or Four Corners potato, is a small perennial nightshade from the dry Southwest, grown from tubers. It is best kept in a sunny, well-drained spot where it can go dormant and dry out in winter.

Family
Solanaceae (Nightshade family)
Grows as
Bulb
Light
Full sun
Water
Water moderately during the growing season and let the soil dry between waterings; keep nearly dry while dormant.
Soil
Sandy or gritty, well-drained soil or mineral-rich potting mix.
Temperature
10-30 °C; hardy to about -20 °C when dormant, protect young growth from frost.
How easy
Easy
Safety
Toxic: All parts, especially the mature fruit, contain solanine; the tubers are edible only after leaching and boiling.. Toxic to cats and dogs (ASPCA).
Edible
Yes, some parts
Native range
Arizona to Colorado and N. Mexico
Climate
temperate

About

Solanum jamesii (common names: wild potato or Four Corners potato) is a species of nightshade. Its range includes the southern United States. All parts of the plant, and especially the fruit, are toxic, containing solanine when it matures. The tubers were/are eaten raw or cooked by several Native American tribes, but they require leaching and boiling in clay in order to be rendered edible. The tubers are small when compared to familiar varieties of S. tuberosum.

Escalante Valley in Utah boasts the oldest archaeologically documented cultivation sites of the Four Corners potato, dating back over 7,000 years, and the plant is so prevalent there that a former name for the area was "Potato Valley". S.

Other Solanum plants

Dwarf Tamarillo · Solanum acaule · Sodaapple nightshade · Ethiopian nightshade · American black nightshade · Solanum arcanum · New Zealand nightshade · Solanum berthaultii · Tamarillo · Solanum brevicaule · Solanum cajanumense · Bitter Apple

Text excerpted from the Wikipedia article Solanum jamesii 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.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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