When to plant eggplants in Grenoble: 28 June – 5 July

In Grenoble, eggplant: sow for seedlings from 8 April to 6 May; plant into a greenhouse from 7 June to 5 July; plant out into open ground from 28 June to 5 July.

Eggplant in Grenoble: soil, season and weather

In Grenoble the soil, not frost, sets the date: the last frost is over around 5 May, but the top 7 cm of soil reaches 18 °C — the minimum on the eggplant card — only around 28 June, 54 days later. 119 days separate planting out (28 June) from the first autumn frost (25 October); the card's 70 days to the first harvest leave 49 for picking, so a start 7 weeks late would still fit.

Last spring frost	5 May
Top 7 cm of soil at 18 °C	28 June, 54 days after the last frost
Into an unheated greenhouse	7 June – 5 July; June outside: 10.1 °C at night, 20.6 °C by day; card 21–29 °C
First autumn frost	25 October, 119 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	6 September – 13 September
Days left for picking	49
Daylight	14:10 on 29 April, 15:37 on 28 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 9 rainy days

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

Eggplant in Grenoble: care after planting

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

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

28 June — feed: balanced (NPK)
26 July — 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 Grenoble during the eggplant season

No month of the season averages above the eggplant card's 21–29 °C by day; the warmest, August, averages 22.8 °C. Months that stay below 21 °C even by day on average: June (20.6 °C), September (18 °C) and October (14.1 °C). Nights average below 21 °C in every month of the season, from 4.3 °C to 11.7 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	20.6	10.1	130	13	15:37
July	22.7	11.7	83	9	15:19
August	22.8	11.7	87	8	14:08
September	18	7.7	101	11	12:35
October	14.1	4.3	128	11	11:01

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

All the nearest cities on our list plant eggplant earlier than Grenoble; the closest date is in Annecy, 9 days earlier.

City	Distance	Date	Difference
Chambéry	45 km	3 June – 31 July	25 days earlier
Valence	70 km	29 May – 1 August	30 days earlier
Annecy	86 km	19 June – 25 July	9 days earlier
Lyon	93 km	27 May – 5 August	32 days earlier
Saint-Étienne	108 km	14 June – 28 July	14 days earlier
Geneva	117 km	8 June – 28 July	20 days earlier

Where to buy eggplant plants and seeds near Grenoble

Buy plants ready to set out from 28 June to 5 July (from 7 June to 5 July for an unheated greenhouse); seed for raising your own is sown from 8 April to 6 May. Within 15 km of Grenoble OpenStreetMap lists 17 garden centres, 4 plant nurseries, 55 markets and 19 farm shops (collected 20 October 2026).

Marché d'intérêt national de Grenoble — market
Rue des Alliés 117-127, 38100 · Mon–Fri 03:00–15:00; Sat 03:00–09:00 · 2 km · min-grenoble.fr
Marché Malherbe — market
Avenue Malherbe 11 · Tue–Fri 07:00–13:00; Sat, Sun 07:00–13:30 · 3 km · grenoble.fr
Marché Marcel Cachin — market
Tue, Thu, Sat, Sun 07:00–13:00 · 2 km · ville-fontaine.fr
Marché Hébert — market
Place Raymond Périnetti, 38000 Grenoble · Tue 07:00–13:00, 15:00–19:00; Thu, Fri 07:00–13:00; Sat 07:00–13:30 · 1 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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