When to plant zucchini in Białystok: 8 June – 15 August

In Białystok, zucchini: sow for seedlings from 27 April to 25 July; plant into a greenhouse from 18 May to 15 August; plant out into open ground from 8 June to 15 August. For plants and seeds, the places nearby include Euro Ogród (garden centre, 3 km) and Ogrody Marka (garden centre, 5 km); addresses and opening hours are below.

Zucchini in Białystok: soil, season and weather

In Białystok the soil, not frost, sets the date: the last frost is over around 28 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 8 June, 41 days later.

Last spring frost	28 April
Top 7 cm of soil at 18 °C	8 June, 41 days after the last frost
First autumn frost	1 November, 146 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	14 July – 20 September
Days left for picking	110
Daylight	15:59 on 18 May, 16:48 on 8 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 10 rainy days

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

Zucchini in Białystok: care after planting

Planted on 8 June: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Białystok during the zucchini season

About 406 mm of rain falls in the season; November is the driest month (45 mm) and July the wettest (101 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.6	12.8	69	11	16:55
July	23.7	14.2	101	15	16:29
August	24.1	13.8	65	11	14:49
September	19.2	10.2	58	9	12:45
October	12.5	5.5	68	12	10:41
November	5.8	1.2	45	10	8:42

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Białystok, Brest is 4 days earlier and Lida 3 days later.

City	Distance	Date	Difference
Grodno	76 km	8 June – 22 August	same day
Brest	120 km	4 June – 27 August	4 days earlier
Lida	164 km	11 June – 13 August	3 days later
Warsaw	176 km	6 June – 31 August	2 days earlier
Baranovichi	190 km	11 June – 10 August	3 days later
Olsztyn	192 km	9 June – 30 August	1 day later

Where to buy zucchini plants and seeds near Białystok

Buy plants ready to set out from 8 June to 15 August (from 18 May to 15 August for an unheated greenhouse); seed for raising your own is sown from 27 April to 25 July. Within 15 km of Białystok OpenStreetMap lists 8 garden centres, 1 plant nursery and 8 markets (collected 28 October 2026).

Skibiccy D.M. Gospodarstwo sadowniczo - szkółkarskie — plant nursery
7 km
Euro Ogród — garden centre
Generała Józefa Hallera 31, 15-814 Białystok · Mon–Fri 09:00–17:00; Sat 09:00–14:00; Sun closed · 3 km · euroogrod.com.pl
Gardens s.c. Davis, Kryjan — garden centre
Kwiatowa 7, 16-010 Nowodworce · Mon–Fri 08:00–18:00; Sat 08:00–15:00 · 9 km · dkgardens.pl
Ogrody Marka — garden centre
Generała Stanisława Maczka, Białystok · 5 km · ogrodymarka.pl

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