How to Grow Casper Eggplant

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Casper Eggplant

Solanum melongena 'Casper'

vegetable

Casper is a distinctive white eggplant variety that produces elongated, creamy white fruits with tender, mild flesh and minimal bitterness. This ornamental yet productive cultivar is prized for its unique appearance and sweet flavor, making it popular in both home and specialty gardens. It grows as a warm-season annual that requires consistent heat and care for optimal production.

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Example Casper Eggplant timeline · Pittsburgh, PA (Zone 6b)

Plant Casper Eggplant
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Casper Eggplant
Around Jun 26

≈ 70 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Casper Eggplant dates for your own zip code.

Growing Conditions

☀️

Sun: Full sun, 8+ hours daily (prefers intense heat and sunlight)

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Water: Consistent moisture, 1-1.5 inches per week; water deeply at soil level to avoid wetting foliage; reduce water slightly once fruits set to improve flavor

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Spacing: 24 inches

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Days to maturity: 70-85 days from transplant

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Planting depth: 0.25 inches for seeds; transplants set at same depth as pot

Soil

Type: Well-draining, fertile loamy soil rich in organic matter

pH: 6.0-6.8

Amendments:

Compost or well-rotted manure Balanced fertilizer (5-10-10) Perlite or sand for drainage if soil is clay-heavy Aged mushroom compost

Growing Zones

Find your zone →

Zones 5-10 are ideal; can be grown in zones 3-4 with season extension

3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b

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Growth Stages

Seedling

4-6 weeks

Small plants with 2-4 true leaves, tender and light green

Start indoors 6-8 weeks before last frost; maintain 70-80°F soil temperature; provide bright light to prevent leggy growth; keep soil consistently moist but not waterlogged

Vegetative/Transplant

3-4 weeks

Bushy plants 6-12 inches tall with multiple sets of leaves; no flower buds yet

Harden off seedlings over 7-10 days; transplant after all frost danger passes and soil is warm (at least 60°F); space 24 inches apart; mulch around plants; begin light feeding

Flowering

4-6 weeks

Plant reaches 18-24 inches; produces delicate lavender or pale purple flowers with yellow centers

Maintain consistent watering; provide weekly balanced fertilizer; pinch early flowers to encourage branching; ensure adequate pollination (hand-pollinate if needed in heat); watch for pests

Fruiting

3-4 weeks per fruit

White, elongated eggplants 6-8 inches long develop at flower sites; fruits mature from green to creamy white with glossy skin

Reduce watering slightly to concentrate sugars; support heavy fruit with stakes or slings; continue fertilizing; harvest when fruits reach full size but before skin loses glossiness

Harvest & Extended Production

Ongoing until frost

Plant continues to flower and set fruit throughout warm season if harvested regularly

Pick fruits regularly to encourage continued production; remove diseased or misshapen fruits; continue regular feeding and watering; pinch off flowers 6-8 weeks before first expected frost to direct energy to remaining fruits

Companion Planting

Plan your garden →

Plant with:

Basil Marigold Thyme Oregano Spinach Bean Carrot Tomato

Avoid planting near:

Fennel Kohlrabi Brassicas (cabbage, broccoli, cauliflower) Potato

Common Pests

Hand-pick beetles and egg clusters; use row covers on young plants; apply spinosad or neem oil; rotate crops annually
Use floating row covers; spray with neem oil or kaolin clay; avoid over-fertilizing with nitrogen
Increase humidity with regular misting; spray with water to dislodge; use neem oil or insecticidal soap; ensure adequate air circulation
Use yellow sticky traps; spray with neem oil or insecticidal soap; encourage beneficial insects; avoid excessive nitrogen fertilizer
and
Spray with water; use neem oil; introduce ladybugs or lacewings; remove heavily infested leaves

Uses

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Mild Cooking & Grilling

Culinary

Casper eggplants have tender, mild flesh with minimal bitterness, making them ideal for grilling, roasting, and stir-frying without the need for salting to remove bitterness. The creamy white flesh absorbs flavors beautifully and creates elegant plated dishes. [source]

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Raw Consumption

Culinary

Unlike most eggplant varieties, Casper eggplants can be enjoyed sliced thin and served raw in salads due to their mild flavor and tender texture, offering a unique culinary experience. [source]

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Ornamental Garden Feature

Household

The striking white fruits and delicate purple flowers make Casper eggplants visually appealing additions to vegetable gardens, containers, and landscape designs where they function as both edible and decorative plants. [source]

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Nutritional Health Benefits

Medicinal

Eggplants contain nasunin, an anthocyanin antioxidant found in their skin, along with fiber, vitamins, and minerals supporting digestive and cardiovascular health. White eggplants provide these nutrients in a milder, more palatable form for some consumers. [source]

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Pollinator Attraction

Wildlife

The delicate lavender and purple flowers attract bees, butterflies, and other pollinators, providing valuable nectar sources while supporting garden ecosystem health. [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 eggplants reach 6-8 inches long and skin is glossy and creamy white; fruits become bitter and seedy if left too long (skin becomes dull and slightly soft); cut with pruners or knife leaving a 1-inch stem; harvest regularly to encourage continued production; best eaten fresh soon after harvest while tender

Fun Facts

🌱 Casper eggplant is named after the friendly ghost due to its pure white color, making it visually distinctive from traditional dark purple varieties.
🌱 Eggplants are technically berries botanically speaking, developing from the flower's ovary and containing seeds like true berries.
🌱 Casper eggplants originated from Asian heirloom varieties and have been refined for Western gardeners seeking milder, less bitter eggplant options suitable for diverse cuisines.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Annual Cultivar Full Sun Mulch Pollination Transplant True Leaves

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