Greenly Garden

Last and first frost dates in Szczecin

Poland

In Szczecin the last spring frost usually comes around 22 April and the first autumn frost around 17 November, which leaves about 209 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 12 May to 28 July.

Last spring frostaround 22 April
First autumn frostaround 17 November
Frost-free days209 days

Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.

When is the last frost in Szczecin?

The last frost in Szczecin usually comes around 22 April: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 1 April, while corn waits until 30 April. The first autumn frost follows around 17 November, about 209 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha27 February – 9 August8 April – 18 September29 April – 18 September
Ageratumfrom 24 February—from 12 May
Arugula——sow 1 April – 13 October
Basil7 April – 15 September15 May – 23 October5 June – 23 October
Beet——sow 1 April – 18 September
Bell Pepper16 March – 29 May15 May – 28 July5 June – 28 July
Black-eyed Susanfrom 5 February—from 29 April
Bok Choy4 March – 26 September8 April – 31 October29 April – 31 October
Borage——sow 29 April – 23 September
Broad bean——sow 1 April – 9 August
Broccoli——sow 1 April – 2 August
Brussels Sprouts25 January – 30 June11 March – 14 August1 April – 14 August
Busy Lizziefrom 4 February—from 29 April
Cabbage——sow 1 April – 10 July
Calendula——sow from 1 April
Carrot——sow 1 April – 25 August
Cauliflower28 January – 2 August11 March – 13 September1 April – 13 September
Celeriac21 January – 30 May8 April – 15 August29 April – 15 August
Celery21 January – 9 June8 April – 25 August29 April – 25 August
Celosiafrom 17 Marchfrom 1 Mayfrom 22 May
Chamomile——sow 1 April – 13 September
Chayote11 January – 23 May9 April – 19 August30 April – 19 August
Chickpea——sow 1 April – 30 July
Chicory14 February – 24 August—1 April – 18 September
Chili Pepper16 March – 5 July15 May – 3 September5 June – 3 September
China asterfrom 24 Marchfrom 15 Mayfrom 5 June
Chives——sow 1 April – 4 September
Cilantro——sow 1 April – 14 September
Corn——sow 30 April – 30 July
Corn poppy——sow from 1 April
Cosmosfrom 17 Marchfrom 1 Mayfrom 22 May
Cucumber17 April – 5 August15 May – 2 September5 June – 2 September
Daikon——sow 1 April – 11 September
Delphiniumfrom 11 January—from 1 April
Dill——sow 1 April – 24 September
Edging lobeliafrom 4 February—from 29 April
Eggplant16 March – 29 May15 May – 28 July5 June – 28 July
Florence fennel22 February – 9 August8 April – 23 September29 April – 23 September
Foxglovefrom 24 December—from 1 April
Garden sorrel——sow 1 April – 12 September
Green Beans——sow 22 May – 7 August
Hollyhock——sow from 1 April
Hyssop——sow 1 April – 5 August
Kale——sow 1 April – 6 September
Kiwano20 March – 12 August21 April – 13 September12 May – 13 September
Kohlrabi——sow 1 April – 16 September
Leek31 December – 21 May11 March – 30 July1 April – 30 July
Lemon balm——sow 1 April – 8 September
Lettuce——sow 1 April – 21 September
Lisianthusfrom 14 Decemberfrom 11 Marchfrom 1 April
Lovage——sow from 1 April
Luffa3 April – 6 June15 May – 18 July5 June – 18 July
Marigoldfrom 25 Februaryfrom 8 Aprilfrom 29 April
Marjoram16 March – 24 August—5 June – 23 October
Melon17 April – 23 July15 May – 20 August5 June – 20 August
Microgreens——sow 22 May – 3 November
Moringa25 March – 29 August19 May – 23 October9 June – 23 October
Moss rosefrom 11 February—from 29 April
Mustard greens——sow 1 April – 3 October
Napa cabbage6 March – 3 September8 April – 6 October29 April – 6 October
Nasturtiumfrom 1 Marchfrom 8 Aprilfrom 29 April
Okra3 April – 17 August15 May – 28 September5 June – 28 September
Oregano10 January – 14 August11 March – 13 October1 April – 13 October
Pansyfrom 14 Januaryfrom 11 Marchfrom 1 April
Parsley——sow 1 April – 2 September
Parsnip——sow 1 April – 22 July
Peanut8 April – 13 July15 May – 19 August5 June – 19 August
Peas——sow 1 April – 4 September
Petuniafrom 13 Marchfrom 15 Mayfrom 5 June
Physalis7 March – 10 July21 April – 24 August12 May – 24 August
Pumpkin3 April – 11 June15 May – 23 July5 June – 23 July
Purple coneflowerfrom 8 January—from 1 April
Radish——sow 1 April – 18 October
Sage21 January – 10 August11 March – 28 September1 April – 28 September
Scarlet sagefrom 28 February—from 12 May
Snapdragonfrom 5 Januaryfrom 11 Marchfrom 1 April
Soybean——sow 5 June – 29 August
Spinach——sow 1 April – 23 September
Stevia3 March – 1 July21 April – 19 August12 May – 19 August
Stock——sow from 1 April
Sunflower——sow from 22 May
Sweet alyssum——sow from 1 April
Sweet Corn22 March – 24 August13 April – 15 September4 May – 15 September
Sweet peafrom 28 Januaryfrom 11 Marchfrom 1 April
Sweet William——sow from 1 April
Swiss Chard——sow 1 April – 18 September
Thyme——sow 1 April – 30 July
Tomato28 February – 6 June21 April – 28 July12 May – 28 July
Turnip——sow 1 April – 20 September
Watercress——sow 1 April – 1 October
Watermelon17 April – 11 July15 May – 8 August5 June – 8 August
Zinniafrom 14 Aprilfrom 19 Mayfrom 9 June
Zucchini24 April – 10 August15 May – 31 August5 June – 31 August

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. 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.

When the soil warms up in Szczecin

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 8 days before the last spring frost and 15 °C 20 days after it.

SoilDateAgainst the last spring frost
5 °C21 February60 days earlier
10 °C14 April8 days earlier
15 °C12 May20 days later
18 °C5 June44 days later

Frost dates near Szczecin

Of the nearest cities on our list, the last spring frost ends earliest in Potsdam (5 April) and latest in Koszalin (26 April).

CityDistanceLast spring frostFirst autumn frost
Gorzów Wielkopolski90 km21 April13 November
Berlin127 km13 April19 November
Koszalin136 km26 April19 November
Potsdam152 km5 April21 November
Rostock177 km14 April17 November

Seeds, seedlings and markets in Szczecin

Within 15 km of Szczecin OpenStreetMap lists 18 garden centres, 1 farm-supply shop, 1 plant nursery, 13 markets and 4 farm shops (collected 28 October 2026). The nearest garden centre to the city centre is Zielone Królestwo, 3 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Szczecin

Frosts in Szczecin usually come from about 17 November to about 22 April. These plants have indoor care in their Greenly cards and are harvested quickly, so they can be sown on a windowsill in winter.

Weather in Szczecin by month

Average weather in Szczecin over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20–23.7 °C). Nights average below 0 °C in January (-0.9 °C) and February (-0.5 °C). About 662 mm of rain falls in a year, on 129 days; July is the wettest month (105 mm) and April the driest (36 mm).

MonthDay, °CNight, °CRain, mmRainy days
January3.8-0.95813
February5.7-0.54911
March8.90.73710
April13.43.8369
May18.58.44710
June23.3136711
July23.214.110513
August23.714.36112
September2011.4487
October14.17.65912
November7.834810
December4.80.64711

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

CropWhen to plant
Bearded Irisby 18 October
Crocus18 October – end of December
Daffodil18 October – end of December
Garlic18 October – end of December
Grape hyacinthby 18 October
Helleboreby 18 October
Hyacinth18 October – end of December
Lilyby 18 October
Ornamental onionby 18 October
Peonyby 18 October
Saffronby 18 October
Snowdropby 18 October
Tulip18 October – end of December
Wild garlicby 18 October

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).