When to plant zucchini in Gatineau: 11 June – 15 August

In Gatineau, zucchini: sow for seedlings from 30 April to 25 July; plant into a greenhouse from 21 May to 15 August; plant out into open ground from 11 June to 15 August. For plants and seeds, the places nearby include Emery (garden centre, 6 km) and Ritchie Feed & Seed (garden centre, 10 km); addresses and opening hours are below.

Zucchini in Gatineau: soil, season and weather

In Gatineau the soil, not frost, sets the date: the last frost is over around 30 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 11 June, 42 days later.

Last spring frost	30 April
Top 7 cm of soil at 18 °C	11 June, 42 days after the last frost
First autumn frost	1 November, 143 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	17 July – 20 September
Days left for picking	107
Daylight	15:06 on 21 May, 15:37 on 11 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, September, has 9 rainy days

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

Zucchini in Gatineau: care after planting

Planted on 11 June: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Gatineau during the zucchini season

About 611 mm of rain falls in the season; September is the driest month (73 mm) and July the wettest (119 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.5	13.3	114	12	15:39
July	26.4	16.7	119	13	15:21
August	25	16.2	119	13	14:09
September	21.3	12.3	73	9	12:35
October	14.3	6.4	105	12	11:01
November	5.2	-1.5	81	13	9:32

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Gatineau, Montreal is 12 days earlier and Montpelier 9 days later.

City	Distance	Date	Difference
Ottawa	7 km	11 June – 15 August	same day
Montreal	166 km	30 May – 15 August	12 days earlier
Burlington	225 km	1 June – 17 August	10 days earlier
Trois-Rivières	262 km	31 May – 12 August	11 days earlier
Syracuse (United States)	272 km	31 May – 20 August	11 days earlier
Montpelier	282 km	20 June – 31 July	9 days later

Where to buy zucchini plants and seeds near Gatineau

Buy plants ready to set out from 11 June to 15 August (from 21 May to 15 August for an unheated greenhouse); seed for raising your own is sown from 30 April to 25 July. Within 15 km of Gatineau OpenStreetMap lists 9 garden centres, 1 farm-supply shop, 7 markets and 1 farm shop (collected 20 October 2026).

Byward Market — market
6 km
Kiwan Farms — farm shop
14 km
Emery — garden centre
Boulevard Maloney Est 600, J8P 7M4 Gatineau · Mon–Wed 08:30–20:00; Thu–Fri 08:30–21:00; Sat 08:30–17:00; Sun 08:30–17:00 · 6 km · emerycentrejardin.ca
Ritchie Feed & Seed — garden centre
Windmill Lane 1390, K1B 4V5 · 10 km · ritchiefeed.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.

Questions