Greenly Garden

When to plant zucchini in Petrozavodsk: 1 July – 31 July

In Petrozavodsk, zucchini: sow for seedlings from 20 May to 10 July; plant into a greenhouse from 10 June to 31 July; plant out into open ground from 1 July to 31 July.

Zucchini in Petrozavodsk: soil, season and weather

In Petrozavodsk the soil, not frost, sets the date: the last frost is over around 10 May, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 1 July, 52 days later.

Last spring frost10 May
Top 7 cm of soil at 18 °C1 July, 52 days after the last frost
First autumn frost17 October, 108 days after the start
Days in the bed to the first harvest (card)36
First harvest, if planted in this window6 August – 5 September
Days left for picking72
Daylight19:24 on 10 June, 19:29 on 1 July
Watering outdoors when fruiting (card)every 3 days; the driest month, October, has 12 rainy days

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

Zucchini in Petrozavodsk: care after planting

Planted on 1 July: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Petrozavodsk during the zucchini season

About 343 mm of rain falls in the season; October is the driest month (65 mm) and July the wettest (107 mm).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
July20.7131071618:43
August19.111.91041516:01
September147.7671213:01
October6.21.6651210:07

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Petrozavodsk, Veliky Novgorod is 19 days earlier and Arkhangelsk 11 days later.

CityDistanceDateDifference
Saint Petersburg299 km17 June – 3 August14 days earlier
Cherepovets353 km22 June – 31 July9 days earlier
Veliky Novgorod400 km12 June – 2 August19 days earlier
Vologda415 km22 June – 24 July9 days earlier
Arkhangelsk438 km12 July – 22 July11 days later
Helsinki538 km17 June – 3 August14 days earlier

Where to buy zucchini plants and seeds near Petrozavodsk

Buy plants ready to set out from 1 July to 31 July (from 10 June to 31 July for an unheated greenhouse); seed for raising your own is sown from 20 May to 10 July. Within 15 km of Petrozavodsk OpenStreetMap lists 8 garden centres and 2 farm shops (collected 27 October 2026).

Places: © OpenStreetMap contributors, ODbL.

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

When to plant zucchini in Petrozavodsk?

In Petrozavodsk, zucchini: sow for seedlings from 20 May to 10 July; plant into a greenhouse from 10 June to 31 July; plant out into open ground from 1 July to 31 July.

When to sow zucchini for seedlings in Petrozavodsk?

Sow for seedlings from 20 May to 10 July.

When is the last spring frost in Petrozavodsk?

Last spring frost around 10 May, first autumn frost around 17 October.

Other crops in Petrozavodsk, with their dates