When to plant zucchini in Clermont-Ferrand: 27 June – 26 August

In Clermont-Ferrand, zucchini: sow for seedlings from 16 May to 5 August; plant into a greenhouse from 6 June to 26 August; plant out into open ground from 27 June to 26 August. For plants and seeds, the places nearby include Le Biau Jardin (farm shop, 8 km) and Ferme de Sarliève - Site de la Fave (farm shop, 9 km); addresses and opening hours are below.

Zucchini in Clermont-Ferrand: soil, season and weather

In Clermont-Ferrand the soil, not frost, sets the date: the last frost is over around 15 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 27 June, 73 days later.

Last spring frost	15 April
Top 7 cm of soil at 18 °C	27 June, 73 days after the last frost
First autumn frost	12 November, 138 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	2 August – 1 October
Days left for picking	102
Daylight	15:34 on 6 June, 15:42 on 27 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 10 rainy days

The same dates in Clermont-Ferrand hold for Cucumber, Bell Pepper, Eggplant, Pumpkin and Watermelon.

Zucchini in Clermont-Ferrand: care after planting

Planted on 27 June: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Clermont-Ferrand during the zucchini season

About 472 mm of rain falls in the season; July is the driest month (58 mm) and June the wettest (129 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	19.9	11.2	129	15	15:42
July	22.1	12.6	58	10	15:23
August	22.5	12.8	60	10	14:10
September	18.4	9.5	70	11	12:36
October	14.4	6.6	74	11	11:00
November	8.3	2.1	81	14	9:30

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Clermont-Ferrand, Lyon is 31 days earlier and Grenoble 1 day later.

City	Distance	Date	Difference
Saint-Étienne	109 km	14 June – 31 August	13 days earlier
Lyon	137 km	27 May – 8 September	31 days earlier
Limoges	141 km	6 June – 10 September	21 days earlier
Valence	171 km	29 May – 4 September	29 days earlier
Grenoble	216 km	28 June – 8 August	1 day later
Chambéry	222 km	3 June – 3 September	24 days earlier

Where to buy zucchini plants and seeds near Clermont-Ferrand

Buy plants ready to set out from 27 June to 26 August (from 6 June to 26 August for an unheated greenhouse); seed for raising your own is sown from 16 May to 5 August. Within 15 km of Clermont-Ferrand OpenStreetMap lists 13 garden centres, 7 farm-supply shops, 13 markets and 8 farm shops (collected 20 October 2026).

Le Biau Jardin — farm shop
Chemin rural dit du Marais, Gerzat · Wed 13:30–19:00; Thu, Fri 09:00–19:00 · 8 km · lebiaujardin.org
Ferme de Sarliève - Site de la Fave — farm shop · sells: bread, vegetables, biscuits
Rue de la Fave 15, 63800 Cournon-d'Auvergne · 9 km
Paysans Gourmands — farm shop
Wed–Fri 14:00–18:00; Sat 08:00–12:00 · 12 km · paysans-gourmands.fr
La boîte a noeuf — farm shop
Wed, Fri 14:00–19:00 · 14 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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