How to Grow Aubergines in a Greenhouse

For those who want to grow aubergines but are not in an area with a climate suitable for growing this plant, you may opt to grow them in a greenhouse or a tunnel.

Much like a tomato, aubergines need warmth to grow — lots of it.  They do not appreciate cold weather nor do they tolerate frost.  When exposed to prolonged cold, their growth is stunted, their flowers fall off, and they even die.

Growing them in a greenhouse helps.  Sow aubergine seeds in March to April, when the temperature is about 65 °F.  That’s about eight weeks before planting out.

Aside from the climate, aubergines are also particular about the soil where they grow.  Choose a garden soil that is rich in organic matter and drains well.  Mulch will also help especially if you’re in an area that experiences frosts.

Sow four aubergine seeds per inch of soil and seed it about ¼ inches deep.  If you can, maintain a soil temperature of 80 to 90°F until the first seedlings emerge from the compost.

Take note that cold soil shocks aubergine seeds.  It will make the germination process take much longer, if they germinate at all.

By March, your seedlings would be about three inches tall.  Pot your aubergine seedlings into three inch pots or plug trays.  Plant them two to three inches apart.

Water them regularly but make sure to maintain even moisture, not drown them lest their roots rot.  Increase the water as they mature.  Carefully remove weeds remembering not to disturb the plant’s shallow roots.

When the seedlings have grown four true leaves, it’s time to either plant them outdoors or place them in nine-inch (22 and a half centimeters) pots.  Transplant aubergine plants in a row about 24 inches apart.

Apply a dose of fertilizer when you see the plant begin to form fruits.  Use stakes to keep the plants and fruits straight.  Aubergine may take up to four months to begin bearing fruit.