Twin Oaks Valley Greenhouses
$1.99–$6.25Distance unavailable · 2245 North Twin Oaks Valley Road, San Marcos, CA 92069
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trefle.io · CC-BY-SA
Solanaceae
Solanum nigrum
Solanum nigrum
Also known as Solanum roxburghii, Solanum vulgatum var. nigrum, Solanum nigrum var. macrocarpum, Solanum chenopodiifolium
Zones 5–10Sun Full SunWater ModerateCare Moderate
Native Plants · Nightshade · Black Nightshade · Solanaceae · Annual · Berries · Medicinal · Herb · Wild Edible
MedicinalAttracts pollinators
Toxicity: humans, dogs, cats, horses — keep out of reach and wear gloves when pruning.
In stock at 1 nurseryStock updated 9/6/2026
Black nightshade is a fast-growing annual that self-seeds readily in garden conditions. Requires regular watering and benefits from rich, well-draining soil. Monitor closely as all parts contain varying levels of alkaloids.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water when top inch of soil is dry · Every 7-10 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 7–7.5
- Temperature
- -5°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 5a-10b
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Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Alabama, Alaska, Albania, Alberta, Algeria, Altay, Amur, Andaman Is., Antipodean Is., Ascension, Assam, Austria, Azores, Baleares, Baltic States, Bangladesh, Belarus, Belgium, Borneo
- Attracts
- Birds
Sources: trefle, usda, aspca
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