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When to plant tomatoes in South Korea: 11 April – 29 August

Tomato in South Korea: plant out into open ground from 11 April to 29 August.

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.

Planting window by climate zone

ZoneCitiesWindow
270 frost-free days or moreJeju City11 April – 29 August
210–269 frost-free daysSeoul, Busan, Daegu, Daejeon, Gwangju, Ulsan, Jeonju, Gangneung21 April – 3 August
150–209 frost-free daysChuncheon13 May – 11 July

Tomato: the window in each city

CityWindowZone
Jeju City11 April – 29 August270 frost-free days or more
Busan21 April – 2 August210–269 frost-free days
Daegu22 April – 1 August210–269 frost-free days
Ulsan22 April – 27 July210–269 frost-free days
Daejeon24 April – 23 July210–269 frost-free days
Gwangju24 April – 3 August210–269 frost-free days
Seoul24 April – 17 July210–269 frost-free days
Jeonju25 April – 28 July210–269 frost-free days
Gangneung28 April – 1 August210–269 frost-free days
Chuncheon13 May – 11 July150–209 frost-free days