How to Grow Purple Prince Eggplant
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Purple Prince Eggplant
Solanum melongena 'Purple Prince'
vegetablePurple Prince is a hybrid eggplant variety known for its compact, productive plant and glossy, deep purple fruits. It produces medium-sized eggplants (4-6 inches) with excellent flavor and tender flesh, making it ideal for both home gardens and commercial cultivation.
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Example Purple Prince Eggplant timeline · Pittsburgh, PA (Zone 6b)
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Plant Purple Prince Eggplant
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 Purple Prince Eggplant
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Purple Prince Eggplant dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-10; can be grown in 3-4 with season extension or as an annual
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Seedling
3-4 weeksTiny seedlings emerge with cotyledons and develop first true leaves. Plants are delicate and require warmth.
Start indoors 8-10 weeks before last frost. Maintain 70-85°F soil temperature. Keep soil moist but not soggy. Provide 12-14 hours of grow light daily.
Vegetative Growth
4-6 weeksPlants develop multiple true leaves and establish a sturdy stem. Compact branching structure begins to form characteristic of this variety.
Transplant to larger containers as needed. Harden off for 7-10 days before planting outside. Feed with balanced fertilizer every 2 weeks.
Flowering
3-4 weeksPurple or lavender flowers appear in clusters. Pollinators visit blooms; self-pollinating but benefits from gentle shaking or bee visitation.
Ensure consistent watering and full sun. Apply mulch to maintain soil temperature and moisture. Begin fertilizing with phosphorus-rich formula to promote fruit set.
Fruiting
4-8 weeks per flushFruits develop from flowers, growing quickly into glossy, deep purple eggplants 4-6 inches long. Fruits continue setting throughout season.
Maintain even soil moisture to prevent blossom end rot. Support branches with fruit with stakes or cages. Continue regular fertilizing every 2-3 weeks.
Harvest
8-12 weeks of continuous harvestingFruits reach full size and glossy deep purple color. Ready for picking when skin is smooth, shiny, and firmness indicates maturity.
Harvest regularly to encourage continued production. Cut fruits with pruners rather than pulling. Continue harvesting until first frost (zones 3-4) or as long as plant produces.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick beetles and larvae; use row covers early; apply neem oil or spinosad; rotate crops annually
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Use row covers on seedlings; diatomaceous earth; neem oil spray; plant trap crops nearby
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Spray with strong water stream; increase humidity; apply neem oil or insecticidal soap; monitor undersides of leaves
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Yellow sticky traps; reflective mulch; insecticidal soap; neem oil; parasitic wasps
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Plant resistant varieties when available; remove infected plants; rotate crops; solarize soil; maintain good drainage
Uses
Grilling and Roasting
CulinaryPurple Prince eggplants are ideal for grilling, roasting, and baking due to their smaller, manageable size and tender flesh. Their firm texture holds up well to high-heat cooking methods. [source]
Parmigiana and Italian Dishes
CulinaryThe medium size and excellent texture make these eggplants perfect for classic eggplant parmigiana, caponata, and other traditional Italian vegetable preparations. [source]
Asian Cuisine
CulinaryThe compact fruits are well-suited to stir-fries, curries, and Asian vegetable dishes where tender texture and mild flavor are valued. [source]
Ornamental Vegetable Gardening
HouseholdPurple Prince produces abundant, glossy purple fruits on a compact, bushy plant, making it attractive in both vegetable gardens and ornamental plantings. [source]
Pollinator Support
WildlifeThe purple flowers attract bees and other pollinators throughout the growing season, supporting garden ecosystem health. [source]
Harvest Tips
Harvest when fruits are 4-6 inches long and skin is glossy and deep purple (typically 60-80 days after transplanting). Cut fruits with a sharp knife or pruners, leaving 1-2 inches of stem attached. Harvest regularly to encourage continued production throughout the season. Fruits can be picked slightly immature for better tenderness.
Fun Facts
- 🌱 Purple Prince is a hybrid variety bred for productivity and compact growth, making it one of the most reliable eggplant varieties for home gardeners.
- 🌱 Eggplants are actually fruits (botanically berries), not vegetables, and Purple Prince produces them prolifically—a single plant can yield 20-30+ fruits in a season.
- 🌱 The deep purple skin color comes from anthocyanin, the same antioxidant compound found in blueberries and red wine, making eggplants a nutritious choice.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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