Eggplant care — light, water, toxicity and hardiness
Eggplant (Solanum melongena) wants full sun and a drink about every 2 days once established. It is grown as an annual, so hardiness zones do not gate it.
| scientific name | Solanum melongena |
|---|---|
| family | Solanaceae |
| category | vegetable |
| plant type | annual |
| light | full sun |
| water cadence days | 2 |
| frost tolerant | false |
| edible | true |
How often should I water Eggplant?
Keep evenly moist and warm; eggplant loves heat.
Is Eggplant toxic?
We do not have a verified toxicity record for this species, so we will not say either way. Treat it as unknown around pets and children until a vet or a poison-control source says otherwise.
Who eats it
Palatable to people: no. USDA records its toxicity as slight.
What it needs
Its shade tolerance is medium. Its moisture use is high. Its drought tolerance is low. It wants at least about 60 inches of rain a year. Above roughly 80 inches of annual rain it struggles. It tolerates soil down to pH 5.5. It tolerates soil up to pH 7.2. Its fertility requirement is high. Adapted to coarse, sandy soils: yes. Adapted to medium, loamy soils: yes. Adapted to fine, clay soils: no. Its tolerance of waterlogging is low. It needs at least 365 frost-free days. Its salt tolerance is low. Its tolerance of chalky soil is medium. Fire resistant: no. It has been recorded down to 17°F. It suppresses neighbours chemically: no.
How it grows
It grows as a single stem form. Its growth rate is rapid. Its lifespan is short. It puts on most of its growth in year round. It resprouts after damage: no. Coppices: no. Its tolerance of hedging is low. At maturity it reaches about 4.0 feet. Its roots go down at least 24 inches. Its shape is erect. It holds its leaves through winter: yes.
What it looks like
It blooms in indeterminate. Conspicuous in flower: no. The foliage is green. The foliage texture is fine. In summer the canopy is dense in porosity. In winter it is moderate in porosity. Fall colour: yes. The fruit or seed is purple. Fruit begins in year round. Fruit finishes by year round. It fruits low. The fruit persists on the plant: no. The fruit is conspicuous: yes.
Growing more of it
Propagated by seed: yes. Propagated by cuttings: yes. Propagated by container: yes. Propagated by bare root: no. Propagated by bulb: no. Propagated by corm: no. Propagated by tubers: no. Cold stratification required: no. Commercial availability: routinely available.
Source: USDA PLANTS Database; US Cooperative Extension horticulture publications · 2026-09-02