When to plant zucchini in Kostanay: 30 May – 16 July

In Kostanay, zucchini: sow for seedlings from 18 April to 25 June; plant into a greenhouse from 9 May to 16 July; plant out into open ground from 30 May to 16 July. For plants and seeds, the places nearby include Астана (farm shop, 1 km) and Усадьба (garden centre, 5 km); addresses and opening hours are below.

Zucchini in Kostanay: soil, season and weather

In Kostanay the soil, not frost, sets the date: the last frost is over around 4 May, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 30 May, 26 days later.

Last spring frost	4 May
Top 7 cm of soil at 18 °C	30 May, 26 days after the last frost
First autumn frost	2 October, 125 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	5 July – 21 August
Days left for picking	89
Daylight	15:29 on 9 May, 16:32 on 30 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, October, has 8 rainy days

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

Zucchini in Kostanay: care after planting

Planted on 30 May: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Kostanay during the zucchini season

About 283 mm of rain falls in the season; October is the driest month (36 mm) and July the wettest (60 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	20.4	6.9	48	8	15:50
June	23.9	12.4	51	8	16:56
July	26.2	15.3	60	10	16:30
August	24.7	13.5	51	8	14:50
September	17.3	7.1	37	7	12:45
October	8.9	0.3	36	8	10:40

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

All the nearest cities on our list plant zucchini later than Kostanay; the closest date is in Chelyabinsk, 1 day later.

City	Distance	Date	Difference
Chelyabinsk	261 km	31 May – 18 July	1 day later
Kurgan	273 km	1 June – 15 July	2 days later
Magnitogorsk	307 km	2 June – 10 July	3 days later
Kokshetau	384 km	1 June – 13 July	2 days later
Petropavl	405 km	7 June – 13 July	8 days later
Yekaterinburg	447 km	15 June – 12 July	16 days later

Where to buy zucchini plants and seeds near Kostanay

Buy plants ready to set out from 30 May to 16 July (from 9 May to 16 July for an unheated greenhouse); seed for raising your own is sown from 18 April to 25 June. Within 15 km of Kostanay OpenStreetMap lists 3 garden centres, 10 markets and 1 farm shop (collected 27 October 2026).

Усадьба — garden centre
улица Тауелсиздик 51/1, 111100 · 5 km
Береке — market
Шевченко көшесі 37 · 2 km
Астана — farm shop
проспект Аль-Фараби 45, 110000 Қостанай · Mon–Fri 09:00–18:00 · 1 km
Дастархан — market
1 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.

Questions