How to Grow Bombay Purple
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Bombay Purple
Solanum melongena 'Bombay Purple'
vegetableBombay Purple is a traditional eggplant variety known for its deep purple, glossy fruits and excellent flavor. This heirloom cultivar produces medium-sized, elongated fruits that are tender and ideal for curries, grilling, and roasting. It's a prolific producer that thrives in warm climates and is particularly popular in Indian cuisine.
When should you plant Bombay Purple in your zone?
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Example Bombay Purple timeline · Pittsburgh, PA (Zone 6b)
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Plant Bombay Purple
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Bombay Purple
Around Jun 26≈ 70 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Bombay Purple dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 9-11 for direct outdoor cultivation; zones 5-8 with season extension and warm-season planting
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Seedling
4-6 weeks indoorsSmall plants with 2-4 true leaves, tender stems, pale green coloration. Cotyledons emerge first, followed by true leaves.
Keep warm (70-80°F). Provide bright light 12-16 hours daily. Water gently to avoid damping off. Begin fertilizing with dilute balanced fertilizer at 3-4 weeks old.
Vegetative Growth
4-6 weeks after transplantingBushy plants 12-18 inches tall with multiple branches and dark green, slightly spiny leaves. No flowers yet.
Gradually harden off transplants before outdoor planting. Plant in warm soil (65°F+). Provide support stakes early. Maintain consistent watering and apply mulch. Fertilize every 2-3 weeks with balanced or slightly higher potassium formula.
Flowering
3-4 weeksPurple or white flowers appear in leaf axils, star-shaped with prominent yellow stamens. Flowers transition to small green fruit bases.
Ensure consistent watering during flowering to prevent blossom drop. Maintain warm temperatures (70-85°F). Apply consistent fertilizer, slightly higher in phosphorus and potassium. Thin excessive flowers or small fruit if desired for larger individual fruits.
Fruiting & Growth
3-4 weeks per fruit to maturityGlossy, deep purple, elongated fruits develop from 2-4 inches to full 6-8 inch maturity. Skin becomes increasingly glossy and dark.
Support heavy fruit with stakes or cages to prevent breaking. Maintain steady watering—irregular watering causes bitter fruit and rot. Continue fertilizing every 2-3 weeks. Remove yellowed leaves to improve air circulation.
Harvest & Continued Production
6-10 weeks, until frost in cool climatesMature fruits are glossy, deep purple, firm to touch with slight give when squeezed. Plant continues producing new flowers and fruits.
Harvest fruits when glossy and firm but before they become dull (over-mature). Use pruners or a knife to cut fruit stems—don't yank. Continue watering and fertilizing for ongoing production. In cooler zones, this stage may be cut short by first frost.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use row covers on seedlings. Spray neem oil or spinosad. Remove debris and mulch heavily. Encourage natural predators.
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Spray with water forcefully to dislodge. Apply neem oil or insecticidal soap. Maintain humidity through consistent watering and misting.
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Use yellow sticky traps. Spray neem oil or insecticidal soap weekly. Encourage parasitic wasps. Remove heavily infested leaves.
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No cure; remove and destroy infected plants. Control flea beetles (primary vector). Sanitize tools. Choose resistant varieties if available.
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Avoid overhead watering. Improve air circulation with pruning. Remove infected fruit. Apply copper fungicide preventatively. Mulch to prevent soil splash.
Uses
Curry & Traditional Indian Cooking
CulinaryBombay Purple eggplants are prized in Indian cuisine for curries, stews, and vegetable dishes where their tender flesh absorbs spices beautifully. Their smaller size and thinner skin compared to larger varieties make them ideal for traditional recipes. [source]
Grilling & Roasting
CulinaryThe meaty texture holds up well to high heat cooking. Slice lengthwise, brush with oil, and grill or roast until tender. Can be used in caponata, ratatouille, or as a grilled vegetable side dish. [source]
Stuffing & Baking
CulinaryThe medium size makes these eggplants perfect for halving and stuffing with grains, meat, or vegetables, then baking until tender. Popular in Mediterranean and Middle Eastern preparations. [source]
Traditional & Nutritional Benefits
MedicinalEggplants contain nasunin (an anthocyanin) and other polyphenols with antioxidant and anti-inflammatory properties. In traditional medicine systems, eggplant has been used to support heart health and reduce inflammation. [source]
Natural Dye Source
HouseholdThe deep purple skin contains natural pigments that can be extracted and used as a botanical dye for textiles and crafts, producing shades of purple and blue. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest when fruits are 6-8 inches long, glossy, and deep purple. Fruits become bitter if allowed to overmature (skin becomes dull). Use pruners or a sharp knife to cut the tough stem; avoid pulling to prevent plant damage. Harvest regularly (every 3-4 days) to encourage continued flowering and production. The slightly spiny calyx (green top) is edible and indicates freshness.
Fun Facts
- 🌱 Bombay Purple is an heirloom variety that has been cultivated in India for centuries and is particularly associated with Indian regional cuisine.
- 🌱 Eggplants are botanically berries—single-seeded fruits that develop from a flower's ovary. The spiky calyx is actually part of the floral structure that persists on the fruit.
- 🌱 This variety was likely named after Bombay (now Mumbai) where it was traditionally grown and remains a staple in local markets and cuisine.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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