When to plant tomatoes in Daegu: 22 April – 1 August

In Daegu, tomato: sow for seedlings from 8 February to 10 June; plant into a greenhouse from 1 April to 1 August; plant out into open ground from 22 April to 1 August.

Tomato in Daegu: soil, season and weather

In Daegu the soil, not frost, sets the date: the last frost is over around 19 March, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 22 April, 34 days later.

Last spring frost	19 March
Top 7 cm of soil at 15 °C	22 April, 34 days after the last frost
Into an unheated greenhouse	1 April – 1 August; April outside: 9.1 °C at night, 19.4 °C by day; card 16–27 °C
First autumn frost	21 November, 213 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	1 July – 10 October
Days left for picking	143
Daylight	11:24 on 1 March, 13:20 on 22 April
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 3 rainy days

Tomato in Daegu: care after planting

Planted on 22 April: in the first weeks water every 4 days.

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

22 April — feed: balanced (NPK)
20 May — feed: nitrogen

Pests and diseases of tomato 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 Daegu during the tomato season

Days average above the tomato card's 16–27 °C in June (28.4 °C), July (30.2 °C) and August (31 °C). Months that stay below 16 °C even by day on average: November (13.8 °C). Nights average below 16 °C in April, May and October, November (4.9–13.9 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
April	19.4	9.1	87	8	13:05
May	24.4	13.9	94	8	14:03
June	28.4	18.7	155	11	14:35
July	30.2	22.8	227	17	14:22
August	31	23.4	195	17	13:33
September	25.8	18.7	197	14	12:26
October	19.9	11.9	92	8	11:19
November	13.8	4.9	35	3	10:17

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Daegu, Busan is 1 day earlier and Gangneung 6 days later.

City	Distance	Date	Difference
Ulsan	74 km	22 April – 27 July	same day
Busan	88 km	21 April – 2 August	1 day earlier
Daejeon	121 km	24 April – 23 July	2 days later
Jeonju	131 km	25 April – 28 July	3 days later
Gwangju	176 km	24 April – 3 August	2 days later
Gangneung	211 km	28 April – 1 August	6 days later

Where to buy tomato plants and seeds near Daegu

Buy plants ready to set out from 22 April to 1 August (from 1 April to 1 August for an unheated greenhouse); seed for raising your own is sown from 8 February to 10 June. Within 15 km of Daegu OpenStreetMap lists 1 garden centre and 32 markets (collected 28 October 2026).

성동시장 — market
아양로34길 22, 41224 대구광역시 · 3 km
만촌신시장 — market
교학로11길 73, 42072 대구광역시 · 6 km
선플라워꽃농원 — garden centre
9 km
Chilseong Market — market
1 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