When to plant tomatoes in Kitakyushu: from 14 April

In Kitakyushu, tomato: sow for seedlings from 31 January; plant into a greenhouse from 24 March; plant out into open ground from 14 April. There is no autumn frost here, so the frost dates set no end to the window.

Tomato in Kitakyushu: soil, season and weather

In Kitakyushu the soil, not frost, sets the date: the last frost is over around 17 February, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 14 April, 56 days later. Kitakyushu has no autumn frost in the median year, so frost does not end the season.

Last spring frost	17 February
Top 7 cm of soil at 15 °C	14 April, 56 days after the last frost
Into an unheated greenhouse	from 24 March; March outside: 7.4 °C at night, 13.8 °C by day; card 16–27 °C
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	from 23 June
Daylight	11:10 on 21 February, 12:59 on 14 April
Watering outdoors when fruiting (card)	every 3 days; the driest month, April, has 10 rainy days

Tomato in Kitakyushu: care after planting

Planted on 14 April: in the first weeks water every 4 days.

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

14 April — feed: balanced (NPK)
12 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 Kitakyushu during the tomato season

Days average above the tomato card's 16–27 °C in July (29.3 °C), August (31.1 °C) and September (27.7 °C). Nights average below 16 °C in April (11.4 °C) and May (15.6 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
April	18	11.4	148	10	13:01
May	21.8	15.6	163	11	13:54
June	25.4	19.8	260	14	14:24
July	29.3	24.4	261	16	14:12
August	31.1	25.5	240	12	13:26
September	27.7	22.5	213	14	12:25

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Kitakyushu, Kagoshima is 14 days earlier and Hiroshima 21 days later.

City	Distance	Date	Difference
Fukuoka	55 km	7 April – 31 August	7 days earlier
Kumamoto	121 km	2 April – 13 August	12 days earlier
Hiroshima	155 km	5 May – 5 August	21 days later
Busan	220 km	21 April – 2 August	7 days later
Ulsan	234 km	22 April – 27 July	8 days later
Kagoshima	255 km	31 March – 5 September	14 days earlier

Where to buy tomato plants and seeds near Kitakyushu

Buy plants ready to set out from 14 April (from 24 March for an unheated greenhouse); seed for raising your own is sown from 31 January. Within 15 km of Kitakyushu OpenStreetMap lists 1 garden centre and 3 markets (collected 28 October 2026).

ガーデニングshop やまもと — garden centre
15 km
Karato Wholesale Market — market
11 km · karatoichiba.com
Tanga Ichiba — market
0 km
中央卸売市場 — market
3 km

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