When to plant tomatoes in Rostock: 28 May – 28 July

In Rostock, tomato: sow for seedlings from 16 March to 6 June; plant into a greenhouse from 7 May to 28 July; plant out into open ground from 28 May to 28 July. For plants and seeds, the places nearby include Bauhaus Stadtgarten (garden centre, 3 km) and Block's Garten- und Blumen Markt (garden centre, 3 km); addresses and opening hours are below.

Tomato in Rostock: soil, season and weather

In Rostock the soil, not frost, sets the date: the last frost is over around 14 April, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 28 May, 44 days later.

Last spring frost	14 April
Top 7 cm of soil at 15 °C	28 May, 44 days after the last frost
Into an unheated greenhouse	7 May – 28 July; May outside: 8.1 °C at night, 17.2 °C by day; card 16–27 °C
First autumn frost	17 November, 173 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	6 August – 6 October
Days left for picking	103
Daylight	13:22 on 6 April, 16:37 on 28 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 11 rainy days

Tomato in Rostock: care after planting

Planted on 28 May: in the first weeks water every 4 days.

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

28 May — feed: balanced (NPK)
25 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 Rostock during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, August, averages 22.7 °C. Months that stay below 16 °C even by day on average: October (13.9 °C) and November (8 °C). Nights average below 16 °C in every month of the season, from 3.4 °C to 13.9 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	17.2	8.1	53	11	15:58
June	21.6	12.3	67	11	17:08
July	22	13.8	83	14	16:40
August	22.7	13.9	62	12	14:55
September	19.4	11.3	56	9	12:46
October	13.9	7.9	68	14	10:38
November	8	3.4	49	11	8:34

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Rostock, Berlin is 18 days earlier and Kiel 1 day later.

City	Distance	Date	Difference
Kiel	130 km	29 May – 31 July	1 day later
Hamburg	151 km	14 May – 30 July	14 days earlier
Szczecin	177 km	12 May – 28 July	16 days earlier
Copenhagen	179 km	25 May – 30 July	3 days earlier
Berlin	195 km	10 May – 30 July	18 days earlier
Potsdam	198 km	14 May – 1 August	14 days earlier

Where to buy tomato plants and seeds near Rostock

Buy plants ready to set out from 28 May to 28 July (from 7 May to 28 July for an unheated greenhouse); seed for raising your own is sown from 16 March to 6 June. Within 15 km of Rostock OpenStreetMap lists 5 garden centres, 4 plant nurseries, 13 markets and 8 farm shops (collected 28 October 2026).

Grönfingers — garden centre
Alt Bartelsdorfer Straße 18, 18146 Rostock · Mon–Sat 09:00–19:00 · 5 km · groenfingers.de
Block's Garten- und Blumen Markt — garden centre
Satower Straße 74, 18059 Rostock · 3 km · blumenblock.de
Toom Gartencenter — garden centre
Mon–Sat 08:00–20:00 · 6 km · toom.de
Bauhaus Stadtgarten — garden centre
Mon–Fri 07:00–20:00; Sat 08:00–20:00 · 3 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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