Korean Purple

Family: Convolvulaceae Root Vegetable

Sink your spoon into Korean Purple’s richly hued flesh—an aromatic, violet-deep interior that turns luxuriously tender with heat.

The roots develop a smooth, well-shaped form with a vivid purple core and a subtly sweet, earthy fragrance that makes it a standout for bold color in every dish. Grow this warm-season favorite for a harvest that’s as striking on the counter as it is satisfying in roasted preparations and vivid purées.

Light: Full SunMaturity: 85 DaysHabit: Vine

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Apr 25th
Transplant / Sow Outdoors	Jun 20th
Harvest Begins	Sep 13th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	85
Sun Requirements	Full Sun
Growth Habit	Vine
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	80
Min Soil Temp (°F)	60
Min Night Temp (°F)	55
Harden Off (days)	Not Required

Culinary Notes

Chef's Note

Korean Purple carries a floral-aromatic sweetness that turns almost custardy when roasted or steamed—its purple core stays lush instead of going dull. It’s the kind of sweet potato you cook down into a silky purée or caramelize on a hot sheet pan, where the edges get nutty while the center stays spoon-tender.

Best Uses

roasted wedges with crisp edges and creamy centers
silky purple purée for bowls or side plates
baked goods where color matters (muffins, pies, cakes)
thick soups or chowders that benefit from natural sweetness and color

Flavor Profile

violet-deep sweetness earthy, aromatic fragrance silky, spoon-tender texture after heat warm spice-like finish

Kitchen Pairings

brown butter coconut milk lime smoked paprika black pepper ginger

Frequently Asked Questions

What pest or disease commonly affects eggplant (Solanum melongena) and how can I treat it?

Eggplant often suffers from flea beetles and bacterial wilt/potential leaf spotting during warm, humid weather. Use row cover until flowers form to prevent flea beetle feeding, and remove any wilted plants immediately to reduce spread; for leaf spotting, improve airflow (spaced plants, avoid wetting leaves) and apply an appropriate copper-based fungicide early when spots first appear.

How often should I water eggplant during the main growing phase?

During fruiting (roughly the middle to end of the 85-day crop), keep soil consistently evenly moist—about 1 to 2 inches (2.5–5 cm) of water per week total, adjusted for heat. Water deeply at the base when the top 1 inch (2.5 cm) of soil feels dry; irregular watering can cause flower drop and bitter, unevenly filling fruit.

How do I know when Korean Purple eggplant is ready to harvest?

Harvest when fruits are fully colored (deep purple), firm, and glossy, typically about 70–85 days from sowing depending on your start time. Use a gentle twist or snip the stem when the fruit reaches your target size—if seeds look overdeveloped inside or the skin dulls, the fruit is likely past peak tenderness.