Crop profile

Eggplant crop profile

A heat-loving, slower crop, best transplanted well established and tended steadily through summer.

Italiano

Starting method

Transplanting

Direct soil

16 °C

Transplant soil

16 °C

Night minimum

12 °C

Frost buffer

21 days

Heat stop

32 °C

Harvest

70–100 days

Indoor lead

56 days

Key temperatures

0
5
10
15
20
25
30
35
40 °C

Below 16 °CCold risk: slower growth or cold damage.
16 °CMinimum range to start: direct sowing from 16 °C, transplanting from 16 °C.
16–27 °CBest range for growth and production.
27–32 °CPerformance drops and plants move into stress.
Above 32 °CPause transplants: heat stress risk.

Eggplant cycle

1. Start indoors
Average time:
56 days
2. Transplanting
Soil: at least 16 °C
Night minimum: at least 12 °C
3. Growth
Ideal temperatures 16–27 °C
Avoid peaks above 32 °C
4. Harvest
First harvest around:
70–100 days after transplanting

How to start

Recommended method: transplanting.
Prepare seedlings with mild, steady temperatures.
Transplant when soil has reached at least 16 °C and nights stay above 12 °C.

Temperatures to respect

Direct-sowing soil: minimum 16 °C.
Transplant soil: minimum 16 °C.
Night minimum: minimum 12 °C.
Heat stop: 32 °C.
Suggested frost buffer: 21 days.

Harvest timing

Cycle from transplant to first harvest: about 70–100 days.
Harvest gradually as produce reaches maturity.

Seasonal notes

Protect young plants from late frosts and thermal swings.
In summer, avoid water stress and heat peaks above 32 °C.
Steady growth improves development and harvest quality.

FAQ and sources

When should you transplant eggplant?

Eggplant is transplanted later than many other vegetables: wait for soil at least 16 °C, nights above 12 °C, and about 21 days after the last frost. It needs stable heat, not a cold spring. In cool or windy areas, use a tunnel, cold greenhouse, or very sheltered position. A plant set out in cold conditions stays stuck for a long time; one transplanted at the right time starts faster and easily catches up.

How do you sow eggplant in a seed tray?

To raise good eggplant seedlings, sow in a warm place about 56 days before transplanting. Strong light and steady temperature are essential: seedlings grow slowly if the nursery is cold. Pot on when roots fill the container, without stressing them. Before planting out, harden plants off gradually outdoors. For a home garden, buying healthy young plants is often easier, especially in areas with a short spring.

How long does eggplant take to harvest?

Eggplants are usually harvested 70-100 days after transplanting. The right moment is not maximum size, but fruit quality: it should be glossy, firm, and have tight skin. If it turns dull and too hard, it is often overmature and seedier. Cut the stalk with scissors because it is tough and sometimes spiny. Regular harvesting helps the plant produce new flowers and fruit.

Why does eggplant drop its flowers?

Flower drop often happens because of cold, heat above 32 °C, drought, or poor light. Eggplant likes warmth, but not constant extremes. Water regularly, mulch, and keep the plant in full sun, while avoiding water stress during heatwaves. Too much nitrogen can also give big leaves and few fruits. In pots, use large containers because cramped roots and frequent dryness cause weak flowering and small fruit.

Does eggplant need staking and pruning?

Yes. In most gardens it is best to support eggplant with a stake. The fruit is heavy and wind can bend branches. It does not need complicated pruning: remove very low leaves, yellowing parts, and branches touching the soil. Keep the plant airy but do not strip it too much, because leaves protect fruit from strong sun. Balanced feeding with good potassium during production helps fruit quality and size.