When to plant cucumbers in Rzeszów: 7 June – 31 August

In Rzeszów, cucumber: sow for seedlings from 19 April to 3 August; plant into a greenhouse from 17 May to 31 August; plant out into open ground from 7 June to 31 August. For plants and seeds, the places nearby include Centrum Ogrodnictwa PlantiCo (garden centre, 3 km) and Ogrody ResGal (garden centre, 3 km); addresses and opening hours are below.

Cucumber in Rzeszów: soil, season and weather

In Rzeszów the soil, not frost, sets the date: the last frost is over around 13 April, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 7 June, 55 days later.

Last spring frost	13 April
Top 7 cm of soil at 18 °C	7 June, 55 days after the last frost
Into an unheated greenhouse	17 May – 31 August; May outside: 8.6 °C at night, 18.6 °C by day; card 18–25 °C
First autumn frost	15 November, 161 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	11 July – 4 October
Days left for picking	127
Daylight	15:09 on 10 May, 16:13 on 7 June
Watering outdoors when fruiting (card)	every 2 days; the driest month, November, has 12 rainy days

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

Cucumber in Rzeszów: care after planting

Planted on 7 June: in the first weeks water every 4 days.

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

14 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 Rzeszów during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, August, averages 24.9 °C. Months that stay below 18 °C even by day on average: October (14.2 °C) and November (7.7 °C). Nights average below 18 °C in every month of the season, from 2.2 °C to 15.2 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.9	14	79	13	16:21
July	24.8	15.2	97	16	15:58
August	24.9	15	77	10	14:31
September	20	11.2	84	11	12:41
October	14.2	7	71	11	10:49
November	7.7	2.2	58	12	9:04

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

Around Rzeszów, Uzhhorod is 11 days earlier and Drohobych 5 days later.

City	Distance	Date	Difference
Drohobych	133 km	12 June – 6 August	5 days later
Kielce	134 km	7 June – 20 August	same day
Lublin	140 km	7 June – 26 August	same day
Lviv	147 km	7 June – 28 August	same day
Kraków	147 km	6 June – 17 August	1 day earlier
Uzhhorod	159 km	27 May – 16 August	11 days earlier

Where to buy cucumber plants and seeds near Rzeszów

Buy plants ready to set out from 7 June to 31 August (from 17 May to 31 August for an unheated greenhouse); seed for raising your own is sown from 19 April to 3 August. Within 15 km of Rzeszów OpenStreetMap lists 14 garden centres, 4 plant nurseries, 5 markets and 1 farm shop (collected 28 October 2026).

Centrum Ogrodnictwa PlantiCo — garden centre
Lubelska 48, Rzeszów · 3 km
Ogrody ResGal — garden centre
Mon–Fri 08:00–19:00; Sat 08:00–17:00 · 3 km · resgal.pl
Damgreen — garden centre
Mon–Fri 09:00–16:00; Sat 09:00–13:00 · 5 km · damgreen.pl
Agrico — garden centre
Trzebownisko 934T, 36-001 · 6 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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