When to plant bell peppers in Karlsruhe: 30 May – 30 July

In Karlsruhe, bell pepper: sow for seedlings from 10 March to 31 May; plant into a greenhouse from 9 May to 30 July; plant out into open ground from 30 May to 30 July. For plants and seeds, the places nearby include OBI Gartencenter (garden centre, 7 km) and Heckert Gartencenter (garden centre, 8 km); addresses and opening hours are below.

Bell Pepper in Karlsruhe: soil, season and weather

In Karlsruhe the soil, not frost, sets the date: the last frost is over around 5 April, but the top 7 cm of soil reaches 18 °C — the minimum on the bell pepper card — only around 30 May, 55 days later.

Last spring frost	5 April
Top 7 cm of soil at 18 °C	30 May, 55 days after the last frost
Into an unheated greenhouse	9 May – 30 July; May outside: 9.7 °C at night, 19.8 °C by day; card 15–30 °C
First autumn frost	19 November, 173 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	8 August – 8 October
Days left for picking	103
Daylight	12:48 on 31 March, 15:51 on 30 May
Watering outdoors when fruiting (card)	every 4 days; the driest month, August, has 10 rainy days

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

Bell Pepper in Karlsruhe: care after planting

Planted on 30 May: in the first weeks water every 5 days.

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

30 May — feed: balanced (NPK)
27 June — 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 Karlsruhe 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 26.4 °C. Months that stay below 15 °C even by day on average: November (9.6 °C). Nights average below 15 °C in May, June and September–November (3.4–14.8 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19.8	9.7	82	13	15:16
June	25.2	14.8	71	11	16:11
July	26.2	15.8	63	11	15:49
August	26.4	16.1	54	10	14:26
September	22	12.4	62	10	12:39
October	16.5	8.5	80	13	10:52
November	9.6	3.4	70	13	9:11

ERA5 2016–2025, Open-Meteo

Bell Pepper in nearby cities

1 of the nearest cities share Karlsruhe's date.

City	Distance	Date	Difference
Mannheim	54 km	1 June – 31 July	2 days later
Stuttgart	62 km	5 June – 19 July	6 days later
Strasbourg	68 km	1 June – 31 July	2 days later
Saarbrücken	106 km	3 June – 29 July	4 days later
Wiesbaden	120 km	30 May – 3 August	same day
Freiburg im Breisgau	120 km	4 June – 27 July	5 days later

Where to buy bell pepper plants and seeds near Karlsruhe

Buy plants ready to set out from 30 May to 30 July (from 9 May to 30 July for an unheated greenhouse); seed for raising your own is sown from 10 March to 31 May. Within 15 km of Karlsruhe OpenStreetMap lists 25 garden centres, 3 farm-supply shops, 18 plant nurseries, 23 markets and 59 farm shops (collected 28 October 2026).

OBI Gartencenter — garden centre
Hertzstraße 3, 76275 Ettlingen · Mon–Sat 08:00–20:00; Sun, public holidays closed · 7 km · obi.de
Heckert Gartencenter — garden centre
Linkenheimer Allee 3, 76344 Eggenstein-Leopoldshafen · Mon–Fri 09:00–19:00; Sat 09:00–18:00; Sun, public holidays closed · 8 km · heckert-gartencenter.de
ZG Raiffeisen Markt — garden centre
Badener Straße 5, 76287 Rheinstetten · Mon, Tue, Thu, Fri 09:30–18:00; Wed, Sat 09:30–13:00, 13:30–20:00; public holidays closed · 9 km · raiffeisenmarkt-oh.de
Stärk GmbH — garden centre
Neue Bahnhofstraße 25, 76356 Weingarten (Baden) · Mon–Fri 08:00–18:00; Sat 08:00–13:00 · 11 km · staerk-gmbh.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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