When to plant eggplants in Hamilton: 1 June – 18 July

In Hamilton, eggplant: sow for seedlings from 12 March to 19 May; plant into a greenhouse from 11 May to 18 July; plant out into open ground from 1 June to 18 July. For plants and seeds, the places nearby include Frootogo Orchards (farm shop, 12 km) and Wier's Lane Lavender & Apiary (farm shop, 13 km); addresses and opening hours are below.

Eggplant in Hamilton: soil, season and weather

In Hamilton the soil, not frost, sets the date: the last frost is over around 19 April, but the top 7 cm of soil reaches 18 °C — the minimum on the eggplant card — only around 1 June, 43 days later.

Last spring frost	19 April
Top 7 cm of soil at 18 °C	1 June, 43 days after the last frost
Into an unheated greenhouse	11 May – 18 July; May outside: 9.4 °C at night, 18.8 °C by day; card 21–29 °C
First autumn frost	7 November, 159 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	10 August – 26 September
Days left for picking	89
Daylight	12:46 on 2 April, 15:10 on 1 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, September, has 9 rainy days

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

Eggplant in Hamilton: care after planting

Planted on 1 June: in the first weeks water every 4 days.

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

1 June — feed: balanced (NPK)
29 June — 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 Hamilton during the eggplant season

No month of the season averages above the eggplant card's 21–29 °C by day; the warmest, July, averages 28 °C. Months that stay below 21 °C even by day on average: October (16.6 °C) and November (9.1 °C). Nights average below 21 °C in every month of the season, from 2.4 °C to 18.8 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	24.8	15.6	71	10	15:22
July	28	18.8	86	11	15:05
August	26.6	18.5	69	11	13:59
September	23.2	15.3	59	9	12:33
October	16.6	9.4	85	11	11:05
November	9.1	2.4	61	10	9:44

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

Around Hamilton, Toronto is 3 days earlier and Rochester 1 day later.

City	Distance	Date	Difference
Kitchener	57 km	31 May – 6 July	1 day earlier
Toronto	58 km	29 May – 10 July	3 days earlier
Buffalo	88 km	29 May – 21 July	3 days earlier
London (Canada)	116 km	29 May – 18 July	3 days earlier
Erie	126 km	30 May – 30 July	2 days earlier
Rochester	181 km	2 June – 23 July	1 day later

Where to buy eggplant plants and seeds near Hamilton

Buy plants ready to set out from 1 June to 18 July (from 11 May to 18 July for an unheated greenhouse); seed for raising your own is sown from 12 March to 19 May. Within 15 km of Hamilton OpenStreetMap lists 10 garden centres, 5 markets and 4 farm shops (collected 20 October 2026).

Frootogo Orchards — farm shop
Parkside Drive 573, Waterdown · 12 km · frootogo.ca
Wier's Lane Lavender & Apiary — farm shop
Weir's Lane 223, Dundas · 13 km · weirslanelavender.ca
Dutch Mill Country Market — garden centre
10 km · thedutchmill.ca
Rose's Garden Center — garden centre
2 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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