When to plant tomatoes in Düsseldorf: 10 May – 1 August

In Düsseldorf, tomato: sow for seedlings from 26 February to 10 June; plant into a greenhouse from 19 April to 1 August; plant out into open ground from 10 May to 1 August. For plants and seeds, the places nearby include Bogie's (garden centre, 5 km) and Selders Meerbusch (garden centre, 8 km); addresses and opening hours are below.

Tomato in Düsseldorf: soil, season and weather

In Düsseldorf the soil, not frost, sets the date: the last frost is over around 4 April, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 10 May, 36 days later.

Last spring frost	4 April
Top 7 cm of soil at 15 °C	10 May, 36 days after the last frost
Into an unheated greenhouse	19 April – 1 August; April outside: 5.3 °C at night, 14.9 °C by day; card 16–27 °C
First autumn frost	21 November, 195 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	19 July – 10 October
Days left for picking	125
Daylight	12:04 on 19 March, 15:18 on 10 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, May, has 11 rainy days

Tomato in Düsseldorf: care after planting

Planted on 10 May: in the first weeks water every 4 days.

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

10 May — feed: balanced (NPK)
7 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 Düsseldorf during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, August, averages 24.4 °C. Months that stay below 16 °C even by day on average: October (15.7 °C) and November (9.9 °C). Nights average below 16 °C in every month of the season, from 4.5 °C to 15.2 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19.2	9.4	70	11	15:33
June	23.4	13.9	74	12	16:33
July	24.1	14.8	83	14	16:09
August	24.4	15.2	74	13	14:38
September	20.7	12.2	78	11	12:42
October	15.7	9.2	84	14	10:46
November	9.9	4.5	78	15	8:56

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

1 of the nearest cities share Düsseldorf's date.

City	Distance	Date	Difference
Duisburg	22 km	10 May – 2 August	same day
Essen	30 km	11 May – 1 August	1 day later
Cologne	35 km	12 May – 31 July	2 days later
Bochum	41 km	13 May – 31 July	3 days later
Dortmund	57 km	16 May – 27 July	6 days later
Bonn	60 km	16 May – 30 July	6 days later

Where to buy tomato plants and seeds near Düsseldorf

Buy plants ready to set out from 10 May to 1 August (from 19 April to 1 August for an unheated greenhouse); seed for raising your own is sown from 26 February to 10 June. Within 15 km of Düsseldorf OpenStreetMap lists 39 garden centres, 1 farm-supply shop, 8 plant nurseries, 46 markets and 64 farm shops (collected 28 October 2026).

Bogie's — garden centre
Düsseldorfer Straße 197, 40667 Meerbusch · Mon–Fri 09:00–19:00; Sat 09:00–18:00; Sun, public holidays 11:00–16:00 · 5 km · bogies.de
Selders Meerbusch — garden centre
Badendonker Straße 9, 40667 Meerbusch · Mon–Fri 09:30–18:30; Sat 09:30–16:00; Sun 11:00–16:00 · 8 km · selders-toni.de
Selders — garden centre
Rheydter Straße 186, 41464 Neuss · Mon–Fri 09:00–18:30; Sat 09:00–16:00; Sun 10:00–13:00 · 9 km · selders-neuss.de
Gärtnerei Hoevels — garden centre
Tönisfeld 4, 41564 Kaarst · Mon–Fri 09:00–18:30; Sat 09:00–16:00; Sun, public holidays 10:00–13:00 · 11 km · gaertnerei-hoevels.de

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