Black nightshade (Solanum interandinum)
Care, watering, light and tips for Black nightshade on Floravia.
Quick facts
- Family: Solanaceae
- Difficulty: Easy to care for
- Watering: every 3 days
- Light: Full sun
- Temperature: 10–35 °C
- Toxicity: Toxic to pets
About Black nightshade
Solanum interandinum, commonly known as Black Nightshade, is a low-growing annual or perennial herbaceous plant, characterized by its oval leaves and small white or purple flowers that develop into globular berries. Although often considered a 'weed', its ripe fruits are edible and it is used in some cultures for its medicinal properties. It is ideal for permaculture gardens, vegetable patches, or as a low-maintenance ornamental plant in pots.
Native range
Andes of South America (mainly Peru, Bolivia, and Ecuador)
Care tips
It prefers full sun to partial shade exposure and well-drained soils rich in organic matter. Watering should be regular, keeping the substrate moist but not waterlogged, especially during flowering and fruiting. A common mistake is to confuse its immature (green) berries with ripe (black or purple) ones, as the former are toxic. Avoid using herbicides if you intend to consume its fruits or utilize its properties.
How to save a dying Black nightshade
- Warning signs
- Yellow or wilting leaves, soft stems, fruits not ripening or dropping.
- First aid
- Check watering, ensure good drainage. Move to partial shade if too sunny. Fertilize gently with potassium.
- What kills it
- Overwatering (root rot) or lack of light/nutrients. Also extreme cold.
- Can it be saved?
- Yes, if roots aren't completely rotted and green stems remain. Act quickly.