When to plant eggplants in Karlsruhe: 30 May – 30 July

In Karlsruhe, eggplant: 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 Dehner (garden centre, 3 km) and Raiffeisenmarkt Grötzingen (farm supply, 7 km); addresses and opening hours are below.

Eggplant 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 eggplant 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 21–29 °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 3 days; the driest month, August, has 10 rainy days

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

Eggplant in Karlsruhe: care after planting

Planted on 30 May: in the first weeks water every 4 days.

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

30 May — feed: balanced (NPK)
27 June — feed: nitrogen

Pests and diseases of eggplant 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 eggplant season

No month of the season averages above the eggplant card's 21–29 °C by day; the warmest, August, averages 26.4 °C. Months that stay below 21 °C even by day on average: May (19.8 °C), October (16.5 °C) and November (9.6 °C). Nights average below 21 °C in every month of the season, from 3.4 °C to 16.1 °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

Eggplant 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 eggplant 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).

Baumschule Kurrle — garden centre
Murgtalstraße 4, 76316 Malsch · Fri 09:00–17:00 · 14 km · baumschule-kurrle.de
ZG Raiffeisen Markt — garden centre
Stephanstraße 1, 76316 Malsch · Mon–Fri 08:30–18:00; Sat 08:30–13:00 · 15 km · zg-raiffeisen.de
Dehner — garden centre
Neureuter Straße 8, 76185 Karlsruhe · Mon–Sat 09:00–20:00; Dec 24 09:00–13:00; Dec 31 09:00–13:00; Sun, public holidays closed · 3 km
Raiffeisenmarkt Grötzingen — farm supply · sells seed
Schultheiß-Kiefer-Straße 8, 76229 Karlsruhe · Mon–Fri 08:00–18:00; Sat 08:00–12:30; public holidays closed · 7 km · raiffeisen-groetzingen.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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