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Last and first frost dates in Rzeszów

Poland

In Rzeszów the last spring frost usually comes around 13 April and the first autumn frost around 15 November, which leaves about 216 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 22 May to 26 July.

Last spring frostaround 13 April
First autumn frostaround 15 November
Frost-free days216 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 Rzeszów?

The last frost in Rzeszów usually comes around 13 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 23 March, while corn waits until 29 April. The first autumn frost follows around 15 November, about 216 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha18 February – 7 August30 March – 16 September20 April – 16 September
Ageratumfrom 6 March—from 22 May
Arugula——sow 23 March – 11 October
Basil9 April – 13 September17 May – 21 October7 June – 21 October
Beet——sow 23 March – 16 September
Bell Pepper18 March – 27 May17 May – 26 July7 June – 26 July
Black-eyed Susanfrom 27 January—from 20 April
Bok Choy23 February – 24 September30 March – 29 October20 April – 29 October
Borage——sow 20 April – 21 September
Broad bean——sow 23 March – 7 August
Broccoli——sow 23 March – 31 July
Brussels Sprouts16 January – 28 June2 March – 12 August23 March – 12 August
Busy Lizziefrom 26 January—from 20 April
Cabbage——sow 23 March – 8 July
Calendula——sow from 23 March
Carrot——sow 23 March – 23 August
Cauliflower19 January – 31 July2 March – 11 September23 March – 11 September
Celeriac12 January – 28 May30 March – 13 August20 April – 13 August
Celery12 January – 7 June30 March – 23 August20 April – 23 August
Celosiafrom 23 Marchfrom 7 Mayfrom 28 May
Chamomile——sow 23 March – 11 September
Chayote10 January – 21 May8 April – 17 August29 April – 17 August
Chickpea——sow 23 March – 28 July
Chicory5 February – 22 August—23 March – 16 September
Chili Pepper18 March – 3 July17 May – 1 September7 June – 1 September
China asterfrom 26 Marchfrom 17 Mayfrom 7 June
Chives——sow 23 March – 2 September
Cilantro——sow 23 March – 12 September
Corn——sow 29 April – 28 July
Corn poppy——sow from 23 March
Cosmosfrom 23 Marchfrom 7 Mayfrom 28 May
Cucumber19 April – 3 August17 May – 31 August7 June – 31 August
Daikon——sow 23 March – 9 September
Delphiniumfrom 2 January—from 23 March
Dill——sow 23 March – 22 September
Edging lobeliafrom 26 January—from 20 April
Eggplant18 March – 27 May17 May – 26 July7 June – 26 July
Florence fennel13 February – 7 August30 March – 21 September20 April – 21 September
Foxglovefrom 15 December—from 23 March
Garden sorrel——sow 23 March – 10 September
Green Beans——sow 28 May – 5 August
Hollyhock——sow from 23 March
Hyssop——sow 23 March – 3 August
Kale——sow 23 March – 4 September
Kiwano30 March – 10 August1 May – 11 September22 May – 11 September
Kohlrabi——sow 23 March – 14 September
Leek22 December – 19 May2 March – 28 July23 March – 28 July
Lemon balm——sow 23 March – 6 September
Lettuce——sow 23 March – 19 September
Lisianthusfrom 5 Decemberfrom 2 Marchfrom 23 March
Lovage——sow from 23 March
Luffa5 April – 4 June17 May – 16 July7 June – 16 July
Marigoldfrom 16 Februaryfrom 30 Marchfrom 20 April
Marjoram18 March – 22 August—7 June – 21 October
Melon19 April – 21 July17 May – 18 August7 June – 18 August
Microgreens——sow 28 May – 1 November
Moringa7 April – 27 August1 June – 21 October22 June – 21 October
Moss rosefrom 2 February—from 20 April
Mustard greens——sow 23 March – 1 October
Napa cabbage25 February – 1 September30 March – 4 October20 April – 4 October
Nasturtiumfrom 20 Februaryfrom 30 Marchfrom 20 April
Okra5 April – 15 August17 May – 26 September7 June – 26 September
Oregano1 January – 12 August2 March – 11 October23 March – 11 October
Pansyfrom 5 Januaryfrom 2 Marchfrom 23 March
Parsley——sow 23 March – 31 August
Parsnip——sow 23 March – 20 July
Peanut10 April – 11 July17 May – 17 August7 June – 17 August
Peas——sow 23 March – 2 September
Petuniafrom 15 Marchfrom 17 Mayfrom 7 June
Physalis17 March – 8 July1 May – 22 August22 May – 22 August
Pumpkin5 April – 9 June17 May – 21 July7 June – 21 July
Purple coneflowerfrom 30 December—from 23 March
Radish——sow 23 March – 16 October
Sage12 January – 8 August2 March – 26 September23 March – 26 September
Scarlet sagefrom 10 March—from 22 May
Snapdragonfrom 27 Decemberfrom 2 Marchfrom 23 March
Soybean——sow 7 June – 27 August
Spinach——sow 23 March – 21 September
Stevia13 March – 29 June1 May – 17 August22 May – 17 August
Stock——sow from 23 March
Sunflower——sow from 28 May
Sweet alyssum——sow from 23 March
Sweet Corn28 March – 22 August19 April – 13 September10 May – 13 September
Sweet peafrom 19 Januaryfrom 2 Marchfrom 23 March
Sweet William——sow from 23 March
Swiss Chard——sow 23 March – 16 September
Thyme——sow 23 March – 28 July
Tomato10 March – 4 June1 May – 26 July22 May – 26 July
Turnip——sow 23 March – 18 September
Watercress——sow 23 March – 29 September
Watermelon19 April – 9 July17 May – 6 August7 June – 6 August
Zinniafrom 27 Aprilfrom 1 Junefrom 22 June
Zucchini26 April – 8 August17 May – 29 August7 June – 29 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 Rzeszów

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 2 days before the last spring frost and 15 °C 39 days after it.

SoilDateAgainst the last spring frost
5 °C7 March37 days earlier
10 °C11 April2 days earlier
15 °C22 May39 days later
18 °C7 June55 days later

Frost dates near Rzeszów

Of the nearest cities on our list, the last spring frost ends earliest in Sambir (10 April) and latest in Nowy Sącz (29 April).

CityDistanceLast spring frostFirst autumn frost
Tarnów72 km13 April1 November
Sambir104 km10 April22 October
Nowy Sącz104 km29 April13 October
Prešov128 km23 April24 October
Drohobych133 km15 April21 October

Seeds, seedlings and markets in Rzeszów

Within 15 km of Rzeszów OpenStreetMap lists 14 garden centres, 4 plant nurseries, 5 markets and 1 farm shop (collected 28 October 2026). The nearest garden centre to the city centre is Sklep ogrodniczy "Eden", 2 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Rzeszów

Frosts in Rzeszów usually come from about 15 November to about 13 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 Rzeszów by month

Average weather in Rzeszów over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20–24.9 °C). Nights average below 0 °C in January (-3.4 °C), February (-1.7 °C) and December (-0.9 °C). About 839 mm of rain falls in a year, on 147 days; July is the wettest month (97 mm) and March the driest (47 mm).

MonthDay, °CNight, °CRain, mmRainy days
January1.8-3.46113
February4.6-1.75611
March8.90.24711
April14.24.56412
May18.68.67913
June23.9147913
July24.815.29716
August24.9157710
September2011.28411
October14.277111
November7.72.25812
December3.2-0.96614

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 16 October
Crocus16 October – 20 December
Daffodil16 October – 20 December
Garlic16 October – 20 December
Grape hyacinthby 16 October
Helleboreby 16 October
Hyacinth16 October – 20 December
Lilyby 16 October
Ornamental onionby 16 October
Peonyby 16 October
Saffronby 16 October
Snowdropby 16 October
Tulip16 October – 20 December
Wild garlicby 16 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).