Solanaceae
Solanum villosum: Red Nightshade Care Guide
Solanum villosum
Grow red nightshade in full sun with consistently moist, fertile, well-draining soil. It is a thirsty annual that dislikes drought, so water every few days and feed lightly during the growing season. Harvest young leaves regularly to keep growth tender, and always cook any part you plan to eat.
Every 4 days
Direct sun
15° - 30°C
50% - 70%
Categories
What is Red Nightshade?
Red Nightshade (Solanum villosum) is a easy-care plant from the Solanaceae family. Solanum villosum, commonly called red nightshade or hairy nightshade, is a fast-growing annual herb in the tomato and potato family (Solanaceae). Native to Eurasia and now naturalized worldwide, it typically reaches 40-60 cm tall, with soft, hairy, toothed leaves and small clusters of white, star-sh...
Red Nightshade grows up to 60cm, spread of 40cm, watering every 4 days, 15°C – 30°C, 50–70% humidity. It is not suitable for indoor environments and not safe for pets.
Unlike many tropical plants, Red Nightshade tolerates watering mistakes. Best for beginners. Without precautions, ingestion can cause irritation in pets. Keep out of reach of cats and dogs.
How to Care for Red Nightshade?
TLDR: Red Nightshade needs Direct sun, watering every 4 days, and temperatures between 15-30°C with 50-70% humidity.
How Often Should You Water Red Nightshade?
Keep the soil evenly moist - water roughly every 4 days, more often in hot weather - since this plant does not tolerate prolonged drying out.
How Much Light Does Red Nightshade Need?
Give it a spot in full, direct sun for at least 6 hours a day; strong light produces the sturdiest growth and best leaf yield.
What Is the Best Soil for Red Nightshade?
Plant in loamy, nutrient-rich, well-draining soil with a slightly acidic to neutral pH (6.0-7.0); working in compost or aged manure boosts leafy growth.
What Pot Should You Use for Red Nightshade?
If grown in containers, use a wide pot at least 25-30 cm deep with generous drainage holes, since this vigorous annual develops a substantial root system quickly.
Care Schedule
Fertilize
Every 35 days
What Is Red Nightshade and Where Does It Come From?
Solanum villosum, commonly called red nightshade or hairy nightshade, is a fast-growing annual herb in the tomato and potato family (Solanaceae). Native to Eurasia and now naturalized worldwide, it typically reaches 40-60 cm tall, with soft, hairy, toothed leaves and small clusters of white, star-shaped flowers. The flowers give way to round berries that ripen from green to red or yellow. In many parts of Africa and Asia, the young leaves and shoots are cooked and eaten as a nutritious leafy vegetable, but every part of the plant - especially the unripe green berries and raw foliage - contains the toxic glycoalkaloid solanine and should never be eaten raw or before fully ripe. Because it thrives in disturbed soil with minimal care, red nightshade is often treated as a fast-cycling kitchen-garden crop rather than a long-term ornamental.
How to Propagate Red Nightshade?
Seed sowing
Self-sows readily once established, so remove spent plants before berries fully ripen if you want to control spread.
- 1 Sow seeds directly in prepared, fertile soil or start in trays a few weeks before the last frost.
- 2 Keep the soil consistently moist until germination.
- 3 Thin or transplant seedlings once they reach about 10-15 cm tall with several true leaves.
- 4 Space plants roughly 20-40 cm apart to allow good airflow.
Materials needed:
Stem cuttings
Cuttings root less reliably than seed but can be useful to propagate a specific plant quickly.
- 1 Cut a healthy stem section with at least one node.
- 2 Remove lower leaves and place the cutting in moist, well-draining substrate.
- 3 Keep the medium consistently damp until roots form.
Materials needed:
How Big Does Red Nightshade Grow?
TLDR: Red Nightshade can reach up to 60cm tall with Fast growth rate.
Max height
60cm
Spread
40cm
Growth rate
Fast
Foliage
Deciduous
Warning: Toxic Plant
This plant can be toxic if ingested. Keep out of reach of:
Plant Uses
Edible
Can be consumed
Medicinal
Medicinal properties
Medicinal Uses
- Traditional use for treating skin infections and wounds
- Studied for antimicrobial and larvicidal properties
- Used in folk medicine for fever and inflammation (under professional guidance only)
Culinary Uses
- Young leaves and shoots cooked as a leafy vegetable (never eaten raw)
- Fully ripe berries used in some regional cuisines after cooking (unripe berries must never be consumed)
Is your plant showing symptoms?
Click on the symptom to discover possible causes:
What Diseases Commonly Affect Red Nightshade?
TLDR: Red Nightshade is susceptible to 8 known diseases. Monitor regularly for early detection.
Aphids
Aphids are small, soft-bodied, pear-shaped insects (1/16 to 1/8 inch long) that feed by sucking nutrient-rich sap from plants. They reproduce rapidly and can quickly weaken plants, causing distorted growth and transmitting plant viruses. Aphids come in various colors including green, black, red, yellow, brown, and gray. They secrete honeydew, a sticky substance that attracts ants and encourages sooty mold growth.
Spider Mites
Spider mites are tiny arachnids (less than 1/20 inch long) related to spiders and ticks that feed on plant sap. They thrive in hot, dry conditions and can cause significant damage to ornamental and vegetable plants. During severe infestations, crop losses can reach 14% or higher as these pests disrupt vital plant processes including photosynthesis, carbon dioxide absorption, and transpiration.
Whiteflies
Whiteflies are small, soft-bodied, winged insects closely related to aphids and mealybugs. They are moth-like in appearance, about 1/16 inch long, triangular in shape, and gray-white in color. These sap-sucking pests feed on plant tissue, causing yellowing, stunted growth, and wilting. They also excrete honeydew, which attracts ants and promotes sooty mold growth. Whiteflies can transmit serious plant viruses.
Bacterial Wilt
Bacterial wilt is a fatal vascular disease caused by bacteria (Erwinia tracheiphila, Ralstonia solanacearum, Xanthomonas spp.) that infects the water-conducting tissue of plants. The bacteria multiply and block the flow of water and nutrients, causing rapid wilting and plant death within 1-2 weeks.
Meaning & Symbolism
As a widespread wild edible and weed of disturbed ground, red nightshade carries no strong ornamental symbolism, but in African and Asian foraging traditions it represents resourcefulness and the practice of turning humble garden weeds into nourishing food.
Fun Facts
Despite being a common weed in many countries, its young leaves are a staple leafy vegetable in parts of East Africa and South Asia.
Laboratory studies found ripe berries showed no measurable toxicity, while unripe green berries were the most toxic part of the plant.
It belongs to the same genus as tomatoes, potatoes, and eggplants, all of which also contain solanine in their green, unripe parts.
Its soft, hairy leaves and stems give it the common name hairy nightshade.
Frequently asked questions
Is Solanum villosum poisonous?
Can I eat the leaves of red nightshade?
How much water does red nightshade need?
Is red nightshade safe for pets?
How fast does Solanum villosum grow?
Compare with similar plants
| Attribute | Difficulty | Light | Watering | Pet Safe |
|---|---|---|---|---|
| Field Maple | Easy | Bright indirect | 14d | ✓ |
| Silver Birch | Easy | Direct sun | 14d | ✓ |
| Common Blanketflower | Easy | Direct sun | 10d | ✓ |
| Cushion Bush | Easy | Direct sun | 14d | ✓ |
Choose & Compare
Sources & References
- An insight to therapeutic potential and phytochemical profile of Solanum villosum (L) - ScienceDirect
- Solanum villosum | CABI Compendium
- Solanum villosum (hairy nightshade) - Go Botany
- How To Grow Solanum villosum | EarthOne
- African Nightshade (Revised) | Infonet Biovision
- Hairy Nightshade (Solanum villosum) | U.S. Fish & Wildlife Service
- Effect of Hairy Nightshade Presence on Potato Nematodes, Diseases, and Insect Pests
