When to plant cucumbers in Buffalo: 29 May – 26 August

In Buffalo, cucumber: sow for seedlings from 10 April to 29 July; plant into a greenhouse from 8 May to 26 August; plant out into open ground from 29 May to 26 August. For plants and seeds, the places nearby include Luds Landscaping (garden centre, 2 km) and Northtown Garden Center (garden centre, 10 km); addresses and opening hours are below.

Cucumber in Buffalo: soil, season and weather

In Buffalo the soil, not frost, sets the date: the last frost is over around 24 April, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 29 May, 35 days later.

Last spring frost	24 April
Top 7 cm of soil at 18 °C	29 May, 35 days after the last frost
Into an unheated greenhouse	8 May – 26 August; May outside: 9.4 °C at night, 19.1 °C by day; card 18–25 °C
First autumn frost	10 November, 165 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	2 July – 29 September
Days left for picking	131
Daylight	14:05 on 1 May, 15:03 on 29 May
Watering outdoors when fruiting (card)	every 2 days; the driest month, September, has 9 rainy days

The same dates in Buffalo hold for Bell Pepper, Eggplant, Zucchini, Pumpkin and Watermelon.

Cucumber in Buffalo: care after planting

Planted on 29 May: in the first weeks water every 4 days.

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

5 June — feed: nitrogen

Pests and diseases of cucumber 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 Buffalo during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, July, averages 26.7 °C. Months that stay below 18 °C even by day on average: October (16.2 °C) and November (8.7 °C). Nights average below 18 °C in May, June and September–November (2.2–15.3 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19.1	9.4	83	12	14:38
June	24.1	15.3	84	11	15:20
July	26.7	18.7	98	13	15:03
August	25.7	18.1	94	13	13:58
September	22.9	14.9	73	9	12:33
October	16.2	9.1	103	13	11:06
November	8.7	2.2	83	12	9:46

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

2 of the nearest cities share Buffalo's date.

City	Distance	Date	Difference
Hamilton	88 km	1 June – 23 August	3 days later
Toronto	94 km	29 May – 15 August	same day
Rochester	106 km	2 June – 28 August	4 days later
Erie	130 km	30 May – 4 September	1 day later
Kitchener	145 km	31 May – 11 August	2 days later
London (Canada)	192 km	29 May – 23 August	same day

Where to buy cucumber plants and seeds near Buffalo

Buy plants ready to set out from 29 May to 26 August (from 8 May to 26 August for an unheated greenhouse); seed for raising your own is sown from 10 April to 29 July. Within 15 km of Buffalo OpenStreetMap lists 10 garden centres and 3 markets (collected 20 October 2026).

Northtown Garden Center — garden centre
Sheridan Drive 2121, 14223 Buffalo · 10 km
Fiorella's Garden Center — garden centre
Delaware Street 55, 14150 Tonawanda · 14 km
Zittel's Country Market — garden centre
Southwestern Boulevard 4415, 14075 Hamburg · 15 km
Luds Landscaping — garden centre
14th Street 341, 14213 Buffalo · 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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