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Heartleaf horsenettle

Solanum cardiophyllum

Also called Heart Leaf Nightshade, Heartleaf Nightshade

A wild potato relative from Mexico that grows to about two feet, valued for its small, palatable tubers. It is a species, and it is considered an invasive weed in parts of the US.

Family
Solanaceae (Nightshade family)
Light
Full sun
Water
Water moderately while growing and let the soil dry between waterings; it tolerates dry spells.
Soil
Well-drained, sandy or loamy soil.
Temperature
15–30 °C; tolerates frost poorly.
How easy
Easy
Safety
Toxic: Leaves, stems, unripe berries and sprouted tubers contain glycoalkaloids, which can cause nausea, vomiting and worse in large amounts; the tubers are eaten in parts of Mexico when properly prepared, with low glycoalkaloid accessions being the safest.. Toxic to cats and dogs (ASPCA).
Native range
Mexico

About

Solanum cardiophyllum, known as cimatli, the heartleaf horsenettle or heartleaf nightshade, is a North American species, found primarily in Mexico. It is also present in some parts of the SW United States, but was probably introduced. This is one of the few wild potato species that was commonly used as food. The Aztec and the Chichimeca ate S. cardiophyllum and the practice continues in some parts of Mexico today. There was at least one farm that was growing S. cardiophyllum, S. ehrenbergii, and S. stoloniferum for market in Jalisco as recently as 2010.

It is listed as an invasive weed in some parts of the US.

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 cardiophyllum 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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