When to plant bell peppers in Dortmund: 5 June – 27 July

In Dortmund, bell pepper: sow for seedlings from 16 March to 28 May; plant into a greenhouse from 15 May to 27 July; plant out into open ground from 5 June to 27 July. For plants and seeds, the places nearby include Gärtnerei Neuhoff (garden centre, 5 km) and Giesebrecht Garten & Pflanzen (garden centre, 12 km); addresses and opening hours are below.

Bell Pepper in Dortmund: soil, season and weather

In Dortmund the soil, not frost, sets the date: the last frost is over around 17 April, but the top 7 cm of soil reaches 18 °C — the minimum on the bell pepper card — only around 5 June, 49 days later.

Last spring frost	17 April
Top 7 cm of soil at 18 °C	5 June, 49 days after the last frost
Into an unheated greenhouse	15 May – 27 July; May outside: 8.7 °C at night, 18.6 °C by day; card 15–30 °C
First autumn frost	16 November, 164 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	14 August – 5 October
Days left for picking	94
Daylight	13:15 on 6 April, 16:25 on 5 June
Watering outdoors when fruiting (card)	every 4 days; the driest month, November, has 14 rainy days

The same dates in Dortmund hold for Cucumber, Eggplant, Zucchini, Pumpkin and Watermelon.

Bell Pepper in Dortmund: care after planting

Planted on 5 June: in the first weeks water every 5 days.

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

5 June — feed: balanced (NPK)
3 July — feed: nitrogen

Pests and diseases of bell pepper 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 Dortmund during the bell pepper season

No month of the season averages above the bell pepper card's 15–30 °C by day; the warmest, August, averages 23.8 °C. Months that stay below 15 °C even by day on average: November (9.6 °C). Nights average below 15 °C in every month of the season, from 4.2 °C to 14.6 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	22.9	13.3	78	12	16:36
July	23.4	14.2	78	14	16:12
August	23.8	14.6	72	13	14:40
September	20.2	11.6	72	12	12:43
October	15.3	9	77	15	10:45
November	9.6	4.2	71	14	8:54

ERA5 2016–2025, Open-Meteo

Bell Pepper in nearby cities

All the nearest cities on our list plant bell pepper earlier than Dortmund; the closest date is in Bochum, 2 days earlier.

City	Distance	Date	Difference
Bochum	18 km	3 June – 31 July	2 days earlier
Essen	32 km	3 June – 1 August	2 days earlier
Duisburg	50 km	3 June – 2 August	2 days earlier
Münster	51 km	1 June – 1 August	4 days earlier
Düsseldorf	57 km	3 June – 1 August	2 days earlier
Cologne	73 km	3 June – 31 July	2 days earlier

Where to buy bell pepper plants and seeds near Dortmund

Buy plants ready to set out from 5 June to 27 July (from 15 May to 27 July for an unheated greenhouse); seed for raising your own is sown from 16 March to 28 May. Within 15 km of Dortmund OpenStreetMap lists 24 garden centres, 2 farm-supply shops, 3 plant nurseries, 21 markets and 35 farm shops (collected 28 October 2026).

Giesebrecht Garten & Pflanzen — garden centre
Im Dorf 23, 44532 Lünen · 12 km · giesebrecht.de
Drippe Ulf Gärtnerei — garden centre
Herner Straße 150, 44575 Castrop-Rauxel · 13 km · gaertnerei-drippe.de
Augsburg Gartencenter — garden centre
Massener Straße 145, 59423 Unna · Mon–Fri 09:00–18:30; Sat 09:00–18:00; Sun 11:00–16:00 · 14 km
Gärtnerei Neuhoff — garden centre
Mon–Fri 09:30–13:00, 14:00–18:00; Sat 09:00–14:00 · 5 km · gaertnerei-neuhoff.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.

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