When to plant tomatoes in Kiel: 29 May – 31 July

In Kiel, tomato: sow for seedlings from 17 March to 9 June; plant into a greenhouse from 8 May to 31 July; plant out into open ground from 29 May to 31 July. For plants and seeds, the places nearby include Dehner Gartencenter (garden centre, 2 km) and Rosa Rostig Gartenaccessoires (garden centre, 3 km); addresses and opening hours are below.

Tomato in Kiel: soil, season and weather

In Kiel the soil, not frost, sets the date: the last frost is over around 9 April, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 29 May, 50 days later.

Last spring frost	9 April
Top 7 cm of soil at 15 °C	29 May, 50 days after the last frost
Into an unheated greenhouse	8 May – 31 July; May outside: 8 °C at night, 16.7 °C by day; card 16–27 °C
First autumn frost	20 November, 175 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	7 August – 9 October
Days left for picking	105
Daylight	13:27 on 7 April, 16:42 on 29 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 13 rainy days

Tomato in Kiel: care after planting

Planted on 29 May: in the first weeks water every 4 days.

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

29 May — feed: balanced (NPK)
26 June — 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 Kiel during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, August, averages 21.9 °C. Months that stay below 16 °C even by day on average: October (13.8 °C) and November (8.1 °C). Nights average below 16 °C in every month of the season, from 3.7 °C to 13.6 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	16.7	8	63	11	16:00
June	20.9	11.9	72	12	17:11
July	21.4	13.3	93	14	16:42
August	21.9	13.6	65	12	14:57
September	18.9	11.5	61	10	12:47
October	13.8	8.2	81	14	10:37
November	8.1	3.7	56	13	8:32

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

All the nearest cities on our list plant tomato earlier than Kiel; the closest date is in Rostock, 1 day earlier.

City	Distance	Date	Difference
Hamburg	86 km	14 May – 30 July	15 days earlier
Rostock	130 km	28 May – 28 July	1 day earlier
Bremen	164 km	17 May – 30 July	12 days earlier
Copenhagen	217 km	25 May – 30 July	4 days earlier
Hanover	219 km	15 May – 1 August	14 days earlier
Magdeburg	263 km	14 May – 29 July	15 days earlier

Where to buy tomato plants and seeds near Kiel

Buy plants ready to set out from 29 May to 31 July (from 8 May to 31 July for an unheated greenhouse); seed for raising your own is sown from 17 March to 9 June. Within 15 km of Kiel OpenStreetMap lists 11 garden centres, 1 farm-supply shop, 1 plant nursery, 9 markets and 19 farm shops (collected 28 October 2026).

Pflanzenhof Dressler — garden centre
Rendsburger Landstraße 456b, 24111 Kiel · Mon–Fri 08:00–18:00, Sat 08:00–14:00 · 6 km · pflanzenhof-dressler.de
Rosa Rostig Gartenaccessoires — garden centre
Yorckstraße 1a, 24105 Kiel · Mon–Fri 10:00–18:00; Sat 10:00–13:00 · 3 km · rosa-rostig.de
Garten Dittmann — garden centre
Kieler Chaussee 65, 24214 Gettorf · Mon–Fri 09:00–18:00; Sat 09:00–14:00 · 13 km · garten-dittmann.de
Dehner Gartencenter — garden centre
Tonberg 5, 24113 Kiel · Mon–Fri 09:00–19:00; Sat 09:00–18:00 · 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.

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