When to plant zucchini in Tomsk: 17 June – 11 July

In Tomsk, zucchini: sow for seedlings from 6 May to 20 June; plant into a greenhouse from 27 May to 11 July; plant out into open ground from 17 June to 11 July.

Zucchini in Tomsk: soil, season and weather

In Tomsk the soil, not frost, sets the date: the last frost is over around 20 May, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 17 June, 28 days later.

Last spring frost	20 May
Top 7 cm of soil at 18 °C	17 June, 28 days after the last frost
First autumn frost	27 September, 102 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	23 July – 16 August
Days left for picking	66
Daylight	17:04 on 27 May, 17:44 on 17 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, September, has 12 rainy days

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

Zucchini in Tomsk: care after planting

Planted on 17 June: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Tomsk during the zucchini season

About 257 mm of rain falls in the season; September is the driest month (55 mm) and July the wettest (76 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	22.8	12.5	58	11	17:43
July	23.7	14.5	76	13	17:10
August	21.5	12.1	68	13	15:13
September	14.5	5.6	55	12	12:50

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Tomsk, Pavlodar is 21 days earlier and Krasnoyarsk 1 day later.

City	Distance	Date	Difference
Kemerovo	146 km	13 June – 10 July	4 days earlier
Novosibirsk	208 km	13 June – 12 July	4 days earlier
Novokuznetsk	334 km	14 June – 14 July	3 days earlier
Barnaul	359 km	8 June – 13 July	9 days earlier
Krasnoyarsk	489 km	18 June – 11 July	1 day later
Pavlodar	698 km	27 May – 18 July	21 days earlier

Where to buy zucchini plants and seeds near Tomsk

Buy plants ready to set out from 17 June to 11 July (from 27 May to 11 July for an unheated greenhouse); seed for raising your own is sown from 6 May to 20 June. Within 15 km of Tomsk OpenStreetMap lists 4 garden centres, 1 farm-supply shop, 2 plant nurseries, 13 markets and 2 farm shops (collected 27 October 2026).

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