How to Grow Summer Blues
Summer Blues
Solanum pseudocapsicum × Solanum melongena hybrid (Ornamental Eggplant)
vegetableSummer Blues is a striking ornamental eggplant variety featuring small, deep blue-purple fruits that mature on compact, bushy plants. This heat-loving plant produces abundant fruits that transition from green to intense blue-purple as they ripen, making it as beautiful as it is productive. The fruits are edible and can be used in cooking, though they're often grown primarily for their ornamental appeal.
When should you plant Summer Blues in your zone?
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Example Summer Blues timeline · Pittsburgh, PA (Zone 6b)
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Plant Summer Blues
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 Summer Blues
Around Jun 26≈ 70 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Summer Blues dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-10; can be grown in zones 3-4 with season extension techniques
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Seedling
3-4 weeksSmall green seedlings with 2 cotyledons; develop first true leaves within 1-2 weeks
Maintain soil moisture and warm temperatures (70-75°F); provide bright light 14-16 hours daily; thin to strongest seedling per cell
Vegetative Growth
4-6 weeksBushy plant develops multiple stems and glossy green leaves; plant grows 12-18 inches tall
Pinch main stem when 6-8 inches tall to encourage branching; maintain consistent moisture; apply diluted liquid fertilizer every 2 weeks; gradually acclimate to outdoor conditions before transplanting
Flowering
3-4 weeksProduces abundant small purple or white flowers in clusters along stem nodes; flowers are self-fertile
Ensure full sun exposure for optimal flowering; maintain even soil moisture; apply balanced fertilizer (5-10-10); light misting can help pollination in low-humidity conditions
Fruit Development & Color Change
4-6 weeksFruits form immediately after flowers; begin as green, gradually turn purple-blue, then deepen to almost black-blue when fully ripe
Maintain consistent water and fertilizer schedule; once fruiting begins, shift to lower-nitrogen fertilizer (5-5-10); ensure maximum sunlight for deepest blue color development; fruits may number 50+ per plant
Peak Production & Harvest
6-8 weeks (until frost)Plant produces continuous crop of brilliant blue fruits; mature fruits are firm and glossy with peak ornamental appeal
Continue watering consistently; deadhead faded flowers to maintain appearance; harvest fruits when fully colored to encourage more flowering; pinch new growth tips in late season to redirect energy
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use neem oil or insecticidal soap; increase humidity; remove heavily infested leaves
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Use row covers on young plants; apply neem oil; use yellow sticky traps; maintain soil moisture as stressed plants are more susceptible
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Yellow sticky traps; neem oil spray; insecticidal soap; encourage beneficial insects like parasitic wasps
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Spray with strong water stream; use insecticidal soap; neem oil; introduce ladybugs or lacewings; avoid excess nitrogen fertilizer
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No cure; remove infected plants; rotate crops; select resistant varieties; sterilize tools; maintain healthy soil
Uses
Fresh Cooking & Grilling
CulinaryYoung, tender Summer Blues eggplants can be grilled, roasted, or sautéed. They have a milder flavor than traditional eggplants and tender texture when harvested at optimal size. [source]
Container & Garden Ornament
OrnamentalThe striking deep blue-purple fruits with glossy finish make Summer Blues an exceptional ornamental plant for containers, borders, and decorative garden displays. Plants produce 50+ fruits simultaneously, creating dramatic visual impact. [source]
Edible Decoration & Table Centerpieces
HouseholdBranches laden with brilliant blue fruits can be cut for fresh floral arrangements and table decorations. The fruits remain beautiful for 2-3 weeks in arrangements while still being edible. [source]
Pollinator Attraction
WildlifeThe abundant small flowers attract bees, butterflies, and other pollinators throughout the growing season, supporting beneficial insect populations in the garden. [source]
Nutritional Value
MedicinalLike all eggplants, Summer Blues contains anthocyanins and other antioxidants; the blue-purple color indicates high levels of anthocyanin pigments associated with anti-inflammatory properties. [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 fruits when fully colored (deep blue-purple) and firm; fruits are best eaten fresh and tender when picked young. For ornamental display, leave fruits on plant to mature fully. Wear gloves when handling as plants may have small spines on stems. Fruits can be picked as needed throughout the season to encourage continued flowering and production. In warm climates, plants may fruit until frost.
Fun Facts
- 🌱 Summer Blues fruits can number 50-100+ per plant in a single growing season, making it one of the most prolific eggplant varieties despite the small fruit size.
- 🌱 The blue-purple color develops only in response to intense sunlight; plants grown in partial shade produce fewer, less vibrantly colored fruits.
- 🌱 Summer Blues is sometimes referred to as 'Blueberry Eggplant' due to the resemblance of its small, round, deep-blue fruits to blueberries, though they are unrelated.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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