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Eggplant · Moderate

How to Grow Thai Long Green

Solanum melongena 'Thai Long Green'

Thai Long Green is a distinctive Asian eggplant variety prized for its slender shape and mild flavor. Gardeners grow it to enjoy unique fruit that cooks quickly without becoming mushy, making it perfect for stir-fries and curries.

☀SunFull sun (6+ hours)
💧WaterHigh — consistent moisture needed
📅Harvest65-75 days
🗺Zones9–12
📏Height2-4 feet
Thai Long Green📷 Wikimedia Commons

Starting Thai Long Green: indoors or direct sow?

🌾 Sow directly in the garden — Thai Long Green is not usually started indoors.

Do not transplant seedlings outdoors until all danger of frost has passed and soil temperatures are warm enough for this sensitive warm-season plant.

Find your last frost date by ZIP code →

Soil, care & harvest

Prepare loose, fertile soil with a pH between 6.0 and 7.0. As a warm-season crop, start seeds indoors only after the last frost date has passed or when nighttime temperatures are consistently above 50°F. Sow seeds about one inch deep. Germination typically takes seven to fourteen days in warm conditions.

Space plants eighteen to twenty-four inches apart to ensure good airflow. Provide consistent moisture, as this variety requires high water levels to thrive. Apply a layer of mulch around the base to retain soil warmth and moisture. Feed regularly with a balanced fertilizer during the growing season to support heavy fruit production.

Watch for flea beetles, aphids, spider mites, and whiteflies; use insecticidal soap or neem oil if infestations occur. Prevent bacterial, fusarium, verticillium wilt, and anthracnose by ensuring proper drainage and avoiding overhead watering. Harvest fruits sixty-five to seventy-five days after sowing when they reach full size and deep purple color.

When to Plant Thai Long Green

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 1 May — September – August
Zone 2 April – May — September
Zone 3 April — August – October
Zone 4 March – April — August – October
Zone 5 March — August – October
Zone 6 March — July – September
Zone 7 February – March — July – September
Zone 8 February — June – August
Zone 9 January — May – July
Zone 10 January — May – July
Zone 11 January — April – June
Zone 12 January — April – June
Zone 13 January — April – June

Companion Plants for Thai Long Green

✓ Good companions

Basil

Repels aphids, spider mites, and thrips while potentially improving eggplant flavor

Borage

Attracts pollinators and beneficial insects while reportedly improving growth

Catnip

Repels ants, aphids, and flea beetles while attracting beneficial predatory insects

Marigold

Deters nematodes, aphids, and whiteflies with natural compounds

Nasturtium

Acts as trap crop for aphids, cucumber beetles, and squash bugs

Oregano

Deters spider mites, aphids, and cabbage moths with aromatic oils

Peppers

Similar growing requirements and both benefit from shared pest deterrents

Tomatoes

Complementary growth habits and shared beneficial insects for pollination

✗ Keep away from

Black Walnut

Produces juglone toxin that causes wilting and stunted growth in nightshades

Brassicas

Compete for similar nutrients and may attract flea beetles that also damage eggplant

Fennel

Releases allelopathic compounds that inhibit growth of most vegetables

Nutrition Facts

Per 100g serving (USDA FoodData Central)

25.0kcal
0.98gProtein
3.00gFiber
2.20mgVitamin C
0.23mgIron
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