When to plant eggplants in Jeonju: 19 May – 28 July

In Jeonju, eggplant: sow for seedlings from 27 February to 29 May; plant into a greenhouse from 28 April to 28 July; plant out into open ground from 19 May to 28 July.

Eggplant in Jeonju: soil, season and weather

In Jeonju the soil, not frost, sets the date: the last frost is over around 27 March, but the top 7 cm of soil reaches 18 °C — the minimum on the eggplant card — only around 19 May, 53 days later.

Last spring frost	27 March
Top 7 cm of soil at 18 °C	19 May, 53 days after the last frost
Into an unheated greenhouse	28 April – 28 July; April outside: 7.3 °C at night, 17.9 °C by day; card 21–29 °C
First autumn frost	17 November, 182 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	28 July – 6 October
Days left for picking	112
Daylight	12:07 on 20 March, 14:09 on 19 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 7 rainy days

The same dates in Jeonju hold for Cucumber, Bell Pepper, Zucchini, Pumpkin and Watermelon.

Eggplant in Jeonju: care after planting

Planted on 19 May: in the first weeks water every 4 days.

Feeding, by the card’s schedule from that day:

19 May — feed: balanced (NPK)
16 June — feed: nitrogen

Pests and diseases of eggplant to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Jeonju during the eggplant season

Days average above the eggplant card's 21–29 °C in August (29.5 °C). Months that stay below 21 °C even by day on average: October (19 °C) and November (12.3 °C). Nights average below 21 °C in May, June and September–November (3.5–17.6 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	22.3	12	106	10	14:03
June	26.3	17.1	150	13	14:34
July	28.7	21.7	267	19	14:22
August	29.5	22.1	232	18	13:32
September	25.4	17.6	178	12	12:26
October	19	10.4	85	8	11:19
November	12.3	3.5	55	7	10:18

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

All the nearest cities on our list plant eggplant earlier than Jeonju; the closest date is in Ulsan, 1 day earlier.

City	Distance	Date	Difference
Daejeon	63 km	17 May – 23 July	2 days earlier
Gwangju	77 km	17 May – 3 August	2 days earlier
Daegu	131 km	16 May – 1 August	3 days earlier
Busan	188 km	15 May – 2 August	4 days earlier
Seoul	194 km	15 May – 17 July	4 days earlier
Ulsan	198 km	18 May – 27 July	1 day earlier

Where to buy eggplant plants and seeds near Jeonju

Buy plants ready to set out from 19 May to 28 July (from 28 April to 28 July for an unheated greenhouse); seed for raising your own is sown from 27 February to 29 May. Within 15 km of Jeonju OpenStreetMap lists 7 markets (collected 28 October 2026).

서신동 시장 — market
3 km
이서중앙정미소 — market
12 km
Jeonju National Agricultural Cooperative Federation Gongpanjang — market
5 km
모래내시장 — market
2 km

Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

Questions