When to plant eggplants in Quebec City: 21 June – 8 July

In Quebec City, eggplant: sow for seedlings from 1 April to 9 May; plant into a greenhouse from 31 May to 8 July; plant out into open ground from 21 June to 8 July. For plants and seeds, the places nearby include Centre SMG (farm supply, 11 km) and Centre Jardin de l'aeroport (garden centre, 13 km); addresses and opening hours are below.

Eggplant in Quebec City: soil, season and weather

In Quebec City 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 21 June, 47 days later. 129 days separate planting out (21 June) from the first autumn frost (28 October); the card's 70 days to the first harvest leave 59 for picking, so a start 8 weeks late would still fit.

Last spring frost	5 May
Top 7 cm of soil at 18 °C	21 June, 47 days after the last frost
Into an unheated greenhouse	31 May – 8 July; May outside: 6.7 °C at night, 17.9 °C by day; card 21–29 °C
First autumn frost	28 October, 129 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	30 August – 16 September
Days left for picking	59
Daylight	13:56 on 22 April, 15:52 on 21 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, September, has 11 rainy days

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

Eggplant in Quebec City: care after planting

Planted on 21 June: in the first weeks water every 4 days.

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

21 June — feed: balanced (NPK)
19 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 Quebec City during the eggplant season

No month of the season averages above the eggplant card's 21–29 °C by day; the warmest, July, averages 25.4 °C. Months that stay below 21 °C even by day on average: September (20.2 °C) and October (13.3 °C). Nights average below 21 °C in every month of the season, from 5.4 °C to 16.2 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	22.6	12.6	144	13	15:51
July	25.4	16.2	161	16	15:31
August	24.2	15.3	144	15	14:15
September	20.2	11.1	101	11	12:37
October	13.3	5.4	128	12	10:58

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

Around Quebec City, Montreal is 22 days earlier and Saguenay 11 days later.

City	Distance	Date	Difference
Trois-Rivières	114 km	31 May – 9 July	21 days earlier
Sherbrooke	165 km	18 June – 7 July	3 days earlier
Saguenay	180 km	2 July – 2 July	11 days later
Montreal	233 km	30 May – 12 July	22 days earlier
Bangor	288 km	25 June – 14 July	4 days later
Augusta	299 km	22 June – 14 July	1 day later

Where to buy eggplant plants and seeds near Quebec City

Buy plants ready to set out from 21 June to 8 July (from 31 May to 8 July for an unheated greenhouse); seed for raising your own is sown from 1 April to 9 May. Within 15 km of Quebec City OpenStreetMap lists 6 garden centres, 1 farm-supply shop and 3 markets (collected 20 October 2026).

Centre Jardin de l'aeroport — garden centre
Route de l'Aéroport 1762 · 13 km · jardindeaeroport.com
Floralies Jouvences — garden centre
Avenue Jules-Verne 2020, G2G 2R2 Québec · 13 km
Centre SMG — farm supply
Boulevard Wilfrid-Hamel 6325, L'Ancienne-Lorette · 11 km
Marché public de Sainte-Foy — market
Avenue Roland-Beaudin 920, G1V 4H8 Québec · May–Oct Mon–Sun 08:00–18:00 · 8 km · marchesaintefoy.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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