Eggplant (aubergine) is a heat-loving member of the Solanaceae family that thrives in Australia's warm climate. It is a beautiful ornamental plant as well as a productive one, with glossy purple-black fruit and attractive purple flowers. In subtropical and tropical climates it can be grown as a productive perennial for 2-3 years.
Plant Spacing
60 cm apart
75 cm between rows
Days to Harvest
65-90 days from transplant
Germination: 10-21 days
Sun Needs
Full sun (6+ hours daily)
Water Needs
Regular, consistent deep watering; sensitive to drought
Soil pH
5.5-6.8
Expected Yield
8-15 fruit per plant per season
Planting times vary significantly across Australia's five climate zones. Find your zone below for the best planting windows.
| Climate Zone | Best Planting Months |
|---|---|
| Tropical (Darwin, Cairns) | Year-round (best March-September in dry season) |
| Subtropical (Brisbane, Northern NSW) | August-November |
| Temperate (Sydney, Melbourne, Perth) | September-November |
| Cool/Alpine (Canberra, Hobart, high country) | October-November (challenging in cold climates) |
| Arid (Alice Springs, outback) | August-October |
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Eggplant is the most heat-demanding of the Solanaceae crops, it requires consistently warm temperatures and a long growing season. In Melbourne and Canberra, the season is short and marginal; in Brisbane, Sydney, and Perth it thrives for most of the year. In Darwin and tropical Queensland, it can be grown almost year-round.
Start seeds 8-10 weeks before the last frost (in cooler climates) or 8 weeks before planting time. Sow at 6-8mm depth in warm propagating mix at 24-30°C, a heating mat is beneficial. Seedlings grow slowly and should be well established before transplanting.
Transplant into the raised bed when nighttime temperatures are reliably above 15°C and daytime temperatures above 22°C. Plant deeply, staking immediately, eggplants become top-heavy with fruit and will blow over or snap without support.
Eggplants are heavy feeders. Incorporate generous compost and complete fertiliser into the planting hole. Feed fortnightly with a balanced liquid fertiliser during vegetative growth, switching to a potassium-rich fertiliser once flowering begins. Mulch heavily to retain soil moisture and warmth.
Variety choice matters greatly in Australia: 'Black Beauty' is the classic large purple variety; 'Lebanese Eggplant' is smaller, mild-flavoured, and very productive; 'Thai Eggplant' produces small round fruit and is particularly heat-tolerant; 'Ping Tung Long' from Taiwan is excellent for subtropical gardens.
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Plant Planner calculates how many eggplant plants your family needs, assigns them to the right beds, and generates a personalised planting schedule for your climate zone.
These plants make excellent neighbours for eggplant in your raised beds, they help deter pests, improve pollination, or enhance growing conditions.
Avoid planting eggplant near these crops, they can inhibit each other's growth, attract shared pests, or compete aggressively.
Spider mites are the most common pest in hot, dry conditions, maintain soil moisture and spray with miticide if needed.
Aphids cluster on new shoots; treat with insecticidal soap.
28-spotted ladybird (Epilachna vigintioctopunctata) is a serious leaf pest in subtropical Australia, hand-pick adults and remove egg clusters from leaf undersides.
Fruit fly is problematic in QLD and NSW, use protein bait traps.
Verticillium wilt causes sudden plant collapse; remove affected plants and rotate crops.
Harvest eggplant when the skin is glossy and the fruit feels firm, typically at 15-20cm for large varieties. Press the skin with your finger; if it springs back slowly, the fruit is ready. If it springs back immediately, it is underripe. If it doesn't spring back, it is overripe and may be bitter. Use a sharp knife or secateurs, leaving a short stem attached.
8-15 fruit per plant per season
Yield depends on variety, growing conditions, and management. These are typical results for well-maintained Australian raised beds.
Plant Planner checks every crop assignment against the full companion database, it knows that Eggplant grows well with Basil and Marigold and warns you about antagonists automatically.
Unlock Free2-4 plants is sufficient for a family of 4 for regular use; eggplants freeze well for extended use
These estimates are based on average Australian household consumption. Adjust up if you plan to preserve, freeze, or use heavily; adjust down for occasional use.
Eggplant germinates in 10-21 days and is ready to harvest in 65-90 days from transplant. Harvest eggplant when the skin is glossy and the fruit feels firm, typically at 15-20cm for large varieties.
Space eggplant plants 60 cm apart, with 75 cm between rows. Correct spacing gives each plant room for airflow and root development and is one of the easiest ways to lift your yield in a raised bed.
Full sun (6+ hours daily). Regular, consistent deep watering; sensitive to drought.
It depends on your climate zone. In temperate areas (Sydney, Melbourne, Perth, Adelaide) plant eggplant September-November. Other zones: tropical, Year-round (best March-September in dry season); subtropical, August-November; cool, October-November (challenging in cold climates); arid, August-October.
Eggplant grows well alongside Basil, Marigold, Thyme, Tarragon, Spinach. Keep it away from Fennel, Corn, which can compete with it or attract shared pests.
2-4 plants is sufficient for a family of 4 for regular use; eggplants freeze well for extended use
Plant Planner automatically calculates how many eggplant plants your family needs, assigns them to the right beds, and generates a personalised planting schedule for your climate zone.
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