When to plant zucchini in Quimper: 15 June – 22 September

In Quimper, zucchini: sow for seedlings from 4 May to 1 September; plant into a greenhouse from 25 May to 22 September; plant out into open ground from 15 June to 22 September. For plants and seeds, the places nearby include La Ferme de Locmaria (magasin de producteurs) (farm shop, 2 km) and Cidrerie Paul Coïc (farm shop, 7 km); addresses and opening hours are below.

Zucchini in Quimper: soil, season and weather

In Quimper the soil, not frost, sets the date: the last frost is over around 8 March, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 15 June, 99 days later.

Last spring frost	8 March
Top 7 cm of soil at 18 °C	15 June, 99 days after the last frost
First autumn frost	9 December, 177 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	21 July – 28 October
Days left for picking	141
Daylight	15:33 on 25 May, 16:01 on 15 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, August, has 11 rainy days

The same dates in Quimper hold for Cucumber, Bell Pepper, Eggplant, Pumpkin and Watermelon.

Zucchini in Quimper: care after planting

Planted on 15 June: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Quimper during the zucchini season

About 700 mm of rain falls in the season; August is the driest month (65 mm) and December the wettest (144 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	20.6	12.6	80	13	16:01
July	22.1	14.1	71	11	15:41
August	22.1	14.1	65	11	14:21
September	19.7	12.5	79	13	12:38
October	16.4	10.4	129	15	10:55
November	12.6	7.6	132	16	9:17
December	10.6	5.9	144	17	8:24

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Quimper, Nantes is 18 days earlier and Plymouth 32 days later.

City	Distance	Date	Difference
Brest (France)	52 km	20 June – 26 September	5 days later
Rennes	180 km	1 June – 11 September	14 days earlier
Nantes	210 km	28 May – 12 September	18 days earlier
Plymouth	264 km	17 July – 14 September	32 days later
Angers	272 km	28 May – 10 September	18 days earlier
La Rochelle	303 km	28 May – 25 September	18 days earlier

Where to buy zucchini plants and seeds near Quimper

Buy plants ready to set out from 15 June to 22 September (from 25 May to 22 September for an unheated greenhouse); seed for raising your own is sown from 4 May to 1 September. Within 15 km of Quimper OpenStreetMap lists 7 garden centres, 4 farm-supply shops, 1 plant nursery, 7 markets and 12 farm shops (collected 27 October 2026).

La Ferme de Locmaria (magasin de producteurs) — farm shop
Rue du Frugy 6, 29000 Quimper · Tue–Wed 15:30–19:30; Fri 12:00–19:30; Sat 09:00–13:00 · 2 km · fr-fr.facebook.com
Les Vergers de Kermao — farm shop · sells: cider
Hent Kermao 12 · May–Sept 09:00–19:00 · 9 km · cidre-bretagne.com
Ferme Sainte-Cécile — farm shop
Allée de Sainte-Cécile 195, 29510 Briec · 8 km · ferme-sainte-cecile.fr
Cidrerie Paul Coïc — farm shop
Mon–Fri 10:00–19:30; public holidays closed; Sat 10:30–17:00 · 7 km · cidrerie-coic.com

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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