Greenly Garden

Last and first frost dates in Kielce

Poland

In Kielce the last spring frost usually comes around 18 April and the first autumn frost around 4 November, which leaves about 200 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 22 May to 15 July.

Last spring frostaround 18 April
First autumn frostaround 4 November
Frost-free days200 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 Kielce?

The last frost in Kielce usually comes around 18 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 28 March, while corn waits until 3 May. The first autumn frost follows around 4 November, about 200 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha23 February – 27 July4 April – 5 September25 April – 5 September
Ageratumfrom 6 March—from 22 May
Arugula——sow 28 March – 30 September
Basil9 April – 2 September17 May – 10 October7 June – 10 October
Beet——sow 28 March – 5 September
Bell Pepper18 March – 16 May17 May – 15 July7 June – 15 July
Black-eyed Susanfrom 1 February—from 25 April
Bok Choy28 February – 13 September4 April – 18 October25 April – 18 October
Borage——sow 25 April – 10 September
Broad bean——sow 28 March – 27 July
Broccoli——sow 28 March – 20 July
Brussels Sprouts21 January – 17 June7 March – 1 August28 March – 1 August
Busy Lizziefrom 31 January—from 25 April
Cabbage——sow 28 March – 27 June
Calendula——sow from 28 March
Carrot——sow 28 March – 12 August
Cauliflower24 January – 20 July7 March – 31 August28 March – 31 August
Celeriac17 January – 17 May4 April – 2 August25 April – 2 August
Celery17 January – 27 May4 April – 12 August25 April – 12 August
Celosiafrom 25 Marchfrom 9 Mayfrom 30 May
Chamomile——sow 28 March – 31 August
Chayote14 January – 10 May12 April – 6 August3 May – 6 August
Chickpea——sow 28 March – 17 July
Chicory10 February – 11 August—28 March – 5 September
Chili Pepper18 March – 22 June17 May – 21 August7 June – 21 August
China asterfrom 26 Marchfrom 17 Mayfrom 7 June
Chives——sow 28 March – 22 August
Cilantro——sow 28 March – 1 September
Corn——sow 3 May – 17 July
Corn poppy——sow from 28 March
Cosmosfrom 25 Marchfrom 9 Mayfrom 30 May
Cucumber19 April – 23 July17 May – 20 August7 June – 20 August
Daikon——sow 28 March – 29 August
Delphiniumfrom 7 January—from 28 March
Dill——sow 28 March – 11 September
Edging lobeliafrom 31 January—from 25 April
Eggplant18 March – 16 May17 May – 15 July7 June – 15 July
Florence fennel18 February – 27 July4 April – 10 September25 April – 10 September
Foxglovefrom 20 December—from 28 March
Garden sorrel——sow 28 March – 30 August
Green Beans——sow 30 May – 25 July
Hollyhock——sow from 28 March
Hyssop——sow 28 March – 23 July
Kale——sow 28 March – 24 August
Kiwano30 March – 30 July1 May – 31 August22 May – 31 August
Kohlrabi——sow 28 March – 3 September
Leek27 December – 8 May7 March – 17 July28 March – 17 July
Lemon balm——sow 28 March – 26 August
Lettuce——sow 28 March – 8 September
Lisianthusfrom 10 Decemberfrom 7 Marchfrom 28 March
Lovage——sow from 28 March
Luffa5 April – 24 May17 May – 5 July7 June – 5 July
Marigoldfrom 21 Februaryfrom 4 Aprilfrom 25 April
Marjoram18 March – 11 August—7 June – 10 October
Melon19 April – 10 July17 May – 7 August7 June – 7 August
Microgreens——sow 30 May – 21 October
Moringa8 April – 16 August2 June – 10 October23 June – 10 October
Moss rosefrom 7 February—from 25 April
Mustard greens——sow 28 March – 20 September
Napa cabbage2 March – 21 August4 April – 23 September25 April – 23 September
Nasturtiumfrom 25 Februaryfrom 4 Aprilfrom 25 April
Okra5 April – 4 August17 May – 15 September7 June – 15 September
Oregano6 January – 1 August7 March – 30 September28 March – 30 September
Pansyfrom 10 Januaryfrom 7 Marchfrom 28 March
Parsley——sow 28 March – 20 August
Parsnip——sow 28 March – 9 July
Peanut10 April – 30 June17 May – 6 August7 June – 6 August
Peas——sow 28 March – 22 August
Petuniafrom 15 Marchfrom 17 Mayfrom 7 June
Physalis17 March – 27 June1 May – 11 August22 May – 11 August
Pumpkin5 April – 29 May17 May – 10 July7 June – 10 July
Purple coneflowerfrom 4 January—from 28 March
Radish——sow 28 March – 5 October
Sage17 January – 28 July7 March – 15 September28 March – 15 September
Scarlet sagefrom 10 March—from 22 May
Snapdragonfrom 1 Januaryfrom 7 Marchfrom 28 March
Soybean——sow 7 June – 16 August
Spinach——sow 28 March – 10 September
Stevia13 March – 18 June1 May – 6 August22 May – 6 August
Stock——sow from 28 March
Sunflower——sow from 30 May
Sweet alyssum——sow from 28 March
Sweet Corn24 March – 11 August15 April – 2 September6 May – 2 September
Sweet peafrom 24 Januaryfrom 7 Marchfrom 28 March
Sweet William——sow from 28 March
Swiss Chard——sow 28 March – 5 September
Thyme——sow 28 March – 17 July
Tomato10 March – 24 May1 May – 15 July22 May – 15 July
Turnip——sow 28 March – 7 September
Watercress——sow 28 March – 18 September
Watermelon19 April – 28 June17 May – 26 July7 June – 26 July
Zinniafrom 28 Aprilfrom 2 Junefrom 23 June
Zucchini26 April – 28 July17 May – 18 August7 June – 18 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 Kielce

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 7 days before the last spring frost and 15 °C 34 days after it.

SoilDateAgainst the last spring frost
5 °C14 March35 days earlier
10 °C11 April7 days earlier
15 °C22 May34 days later
18 °C7 June50 days later

Frost dates near Kielce

Of the nearest cities on our list, the last spring frost ends earliest in Tarnów (13 April) and latest in Częstochowa (22 April).

CityDistanceLast spring frostFirst autumn frost
Radom69 km20 April15 November
Tarnów99 km13 April1 November
Kraków102 km18 April1 November
Częstochowa106 km22 April10 November
Jaworzno121 km15 April12 November

Seeds, seedlings and markets in Kielce

Within 15 km of Kielce OpenStreetMap lists 6 garden centres, 1 farm-supply shop, 6 markets and 3 farm shops (collected 28 October 2026). The nearest garden centre to the city centre is ACM Agrocentrum, 1 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Kielce

Frosts in Kielce usually come from about 4 November to about 18 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 Kielce by month

Average weather in Kielce over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June (23.7 °C), July (24.5 °C) and August (24.7 °C). Nights average below 0 °C in December–March (-4.1–-0.4 °C). About 712 mm of rain falls in a year, on 135 days; July is the wettest month (79 mm) and March the driest (38 mm).

MonthDay, °CNight, °CRain, mmRainy days
January1.6-4.14913
February4.5-2.55112
March8.8-0.4389
April13.83.75812
May18.28.37311
June23.713.56511
July24.514.87914
August24.714.77410
September19.710.96911
October13.85.96311
November7.11.44610
December3.1-1.64711

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 5 October
Crocus5 October – 13 December
Daffodil5 October – 13 December
Garlic5 October – 13 December
Grape hyacinthby 5 October
Helleboreby 5 October
Hyacinth5 October – 13 December
Lilyby 5 October
Ornamental onionby 5 October
Peonyby 5 October
Saffronby 5 October
Snowdropby 5 October
Tulip5 October – 13 December
Wild garlicby 5 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).