Wild Potato Plant Care
Solanum demissum Lindl.
Updated · Sources · How we source care data
Solanum demissum is a species of wild potato in the family Solanaceae, native to Mexico and Guatemala. It has been extensively used as a source of alleles for resistance to Phytophthora infestans, the cause of late potato blight, to improve the domestic potato Solanum tuberosum.
Every 7–10 days
Full sun to partial shade
60–85°F
40–70%
At a glance
How do you care for Wild Potato?
Plant Wild Potato in full sun to partial shade (USDA zones 13a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 60–85°F (16–29°C). Fertilize it every 4 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.
What Is the Wild Potato?
Wild Potato (Solanum demissum) belongs to the Solanaceae family within the Solanum genus. Wild Potato is native to Mexico and Guatemala. Wild Potato is also known as Mexican Wild Potato.
Wild Potato displays an upright, branching shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Wild Potato produces small star-shaped flowers in clusters.
Leaf size: approximately 6 inches.
How Often Should You Water a Wild Potato?
Water a young or newly planted Wild Potato every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–10 days
Until established; then in dry spells
What Light Does the Wild Potato Need?
Wild Potato thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Wild Potato Prefer?
Solanum demissum tolerates temperatures of 60–85°F. Wild Potato prefers humidity levels of 40–70%.
Temperature
60–85°F
Humidity
40–70%
What Soil Mix Works Best for a Wild Potato?
Well-draining, fertile loamy soil with added compost. Good drainage is essential for Wild Potato to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Wild Potato?
Feed Wild Potato every 4 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.
Stop feeding by late summer so new growth can harden before winter.
Fertilizing
Every 4 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a Wild Potato?
Choose a spot with full sun to partial shade and well-draining, fertile loamy soil with added compost. Avoid low spots where water collects after rain.
Wild Potato is suited to USDA Zone 13a.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Wild Potato?
Wild Potato can spread to about 2 ft (0.6 m) and reach about 3 ft (1 m) tall. Space plants about 2 ft (0.6 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the plant spacing calculator.
How Do You Prune a Wild Potato?
Prune Wild Potato while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a Wild Potato in Winter?
Wild Potato is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a Wild Potato?
Wild Potato can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to trailing nightshade plant care, which shares the same genus.
Is the Wild Potato Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Wild Potato?
Wild Potato is susceptible to aphids, whiteflies, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Wild Potato Need?
Wild Potato grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Wild Potato is native to Mexico and Guatemala. In cooler regions, grow Wild Potato as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Wild Potato is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Solanum genus — compare its care with other Solanum species on PlantoScan.
Solanum is part of the Solanaceae plant family — browse all Solanaceae genera and species.
Wild Potato thrives in bright light and direct sun — see other bright-light plants.
More Solanum Species
Other Solanum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Solanum demissum Lindl., family Solanaceae (first published in J. Hort. Soc. London 3: 70, fig. pg. 69. 1848.) — World Flora Online record.
- Pet toxicity: Wild Potato is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
