When to plant pumpkins in Daejeon: 17 May – 18 July

In Daejeon, pumpkin: sow for seedlings from 15 March to 6 June; plant into a greenhouse from 26 April to 18 July; plant out into open ground from 17 May to 18 July.

Pumpkin in Daejeon: soil, season and weather

In Daejeon the soil, not frost, sets the date: the last frost is over around 1 April, but the top 7 cm of soil reaches 18 °C — the minimum on the pumpkin card — only around 17 May, 46 days later.

Last spring frost	1 April
Top 7 cm of soil at 18 °C	17 May, 46 days after the last frost
First autumn frost	12 November, 179 days after the start
Days in the bed to the first harvest (card)	75
First harvest, if planted in this window	31 July – 1 October
Days left for picking	104
Daylight	12:44 on 5 April, 14:08 on 17 May
Watering outdoors when fruiting (card)	every 5 days; the driest month, November, has 5 rainy days

The same dates in Daejeon hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Watermelon.

Pumpkin in Daejeon: care after planting

Planted on 17 May: in the first weeks water every 4 days.

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

7 June — feed: nitrogen

Pests and diseases of pumpkin 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 Daejeon during the pumpkin season

About 1009 mm of rain falls in the season; November is the driest month (45 mm) and July the wettest (265 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	23.2	11.8	89	9	14:05
June	27.4	17.1	145	11	14:37
July	29.2	21.6	265	17	14:25
August	30	22	219	18	13:34
September	25.2	17.2	168	11	12:27
October	18.7	9.8	78	8	11:18
November	12.1	2.4	45	5	10:15

ERA5 2016–2025, Open-Meteo

Pumpkin in nearby cities

Around Daejeon, Seoul is 2 days earlier and Chuncheon 7 days later.

City	Distance	Date	Difference
Jeonju	63 km	19 May – 23 July	2 days later
Daegu	121 km	16 May – 27 July	1 day earlier
Seoul	139 km	15 May – 12 July	2 days earlier
Gwangju	140 km	17 May – 29 July	same day
Chuncheon	172 km	24 May – 6 July	7 days later
Ulsan	195 km	18 May – 22 July	1 day later

Where to buy pumpkin plants and seeds near Daejeon

Buy plants ready to set out from 17 May to 18 July (from 26 April to 18 July for an unheated greenhouse); seed for raising your own is sown from 15 March to 6 June. Within 15 km of Daejeon OpenStreetMap lists 24 markets and 1 farm shop (collected 28 October 2026).

건해산물경매장 — market
2 km
수산1경매장 — market
2 km
양파경매동 — market
2 km
채소경매동 — 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