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Last and first frost dates in Piacenza

Italy

In Piacenza the last spring frost usually comes around 20 March and the first autumn frost around 1 December, which leaves about 256 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 17 April to 11 August.

Last spring frostaround 20 March
First autumn frostaround 1 December
Frost-free days256 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 Piacenza?

The last frost in Piacenza usually comes around 20 March: 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 27 February, while corn waits until 30 March. The first autumn frost follows around 1 December, about 256 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha25 January – 23 August6 March – 2 October27 March – 2 October
Ageratumfrom 30 January—from 17 April
Arugula——sow 27 February – 27 October
Basil13 March – 29 September20 April – 6 November11 May – 6 November
Beet——sow 27 February – 2 October
Bell Pepper19 February – 12 June20 April – 11 August11 May – 11 August
Black-eyed Susanfrom 3 January—from 27 March
Bok Choy30 January – 10 October6 March – 14 November27 March – 14 November
Borage——sow 27 March – 7 October
Broad bean——sow 27 February – 23 August
Broccoli——sow 27 February – 16 August
Brussels Sprouts23 December – 14 July6 February – 28 August27 February – 28 August
Busy Lizziefrom 2 January—from 27 March
Cabbage——sow 27 February – 24 July
Calendula——sow from 27 February
Carrot——sow 27 February – 8 September
Cauliflower26 December – 16 August6 February – 27 September27 February – 27 September
Celeriac19 December – 13 June6 March – 29 August27 March – 29 August
Celery19 December – 23 June6 March – 8 September27 March – 8 September
Celosiafrom 21 Februaryfrom 7 Aprilfrom 28 April
Chamomile——sow 27 February – 27 September
Chayote11 December – 6 June9 March – 2 September30 March – 2 September
Chickpea——sow 27 February – 13 August
Chicory12 January – 7 September—27 February – 2 October
Chili Pepper19 February – 19 July20 April – 17 September11 May – 17 September
China asterfrom 27 Februaryfrom 20 Aprilfrom 11 May
Chives——sow 27 February – 18 September
Cilantro——sow 27 February – 28 September
Corn——sow 30 March – 13 August
Corn poppy——sow from 27 February
Cosmosfrom 21 Februaryfrom 7 Aprilfrom 28 April
Cucumber23 March – 19 August20 April – 16 September11 May – 16 September
Daikon——sow 27 February – 25 September
Delphiniumfrom 9 December—from 27 February
Dill——sow 27 February – 8 October
Edging lobeliafrom 2 January—from 27 March
Eggplant19 February – 12 June20 April – 11 August11 May – 11 August
Florence fennel20 January – 23 August6 March – 7 October27 March – 7 October
Foxglovefrom 21 November—from 27 February
Garden sorrel——sow 27 February – 26 September
Green Beans——sow 28 April – 21 August
Hollyhock——sow from 27 February
Hyssop——sow 27 February – 19 August
Kale——sow 27 February – 20 September
Kiwano23 February – 26 August27 March – 27 September17 April – 27 September
Kohlrabi——sow 27 February – 30 September
Leek28 November – 4 June6 February – 13 August27 February – 13 August
Lemon balm——sow 27 February – 22 September
Lettuce——sow 27 February – 5 October
Lisianthusfrom 11 Novemberfrom 6 Februaryfrom 27 February
Lovage——sow from 27 February
Luffa9 March – 20 June20 April – 1 August11 May – 1 August
Marigoldfrom 23 Januaryfrom 6 Marchfrom 27 March
Marjoram19 February – 7 September—11 May – 6 November
Melon23 March – 6 August20 April – 3 September11 May – 3 September
Microgreens——sow 28 April – 17 November
Moringa15 March – 12 September9 May – 6 November30 May – 6 November
Moss rosefrom 9 January—from 27 March
Mustard greens——sow 27 February – 17 October
Napa cabbage1 February – 17 September6 March – 20 October27 March – 20 October
Nasturtiumfrom 27 Januaryfrom 6 Marchfrom 27 March
Okra9 March – 31 August20 April – 12 October11 May – 12 October
Oregano8 December – 28 August6 February – 27 October27 February – 27 October
Pansyfrom 12 Decemberfrom 6 Februaryfrom 27 February
Parsley——sow 27 February – 16 September
Parsnip——sow 27 February – 5 August
Peanut14 March – 27 July20 April – 2 September11 May – 2 September
Peas——sow 27 February – 18 September
Petuniafrom 16 Februaryfrom 20 Aprilfrom 11 May
Physalis10 February – 24 July27 March – 7 September17 April – 7 September
Pumpkin9 March – 25 June20 April – 6 August11 May – 6 August
Purple coneflowerfrom 6 December—from 27 February
Radish——sow 27 February – 1 November
Sage19 December – 24 August6 February – 12 October27 February – 12 October
Scarlet sagefrom 3 February—from 17 April
Snapdragonfrom 3 Decemberfrom 6 Februaryfrom 27 February
Soybean——sow 11 May – 12 September
Spinach——sow 27 February – 7 October
Stevia6 February – 15 July27 March – 2 September17 April – 2 September
Stock——sow from 27 February
Sunflower——sow from 28 April
Sweet alyssum——sow from 27 February
Sweet Corn23 February – 7 September17 March – 29 September7 April – 29 September
Sweet peafrom 26 Decemberfrom 6 Februaryfrom 27 February
Sweet William——sow from 27 February
Swiss Chard——sow 27 February – 2 October
Thyme——sow 27 February – 13 August
Tomato3 February – 20 June27 March – 11 August17 April – 11 August
Turnip——sow 27 February – 4 October
Watercress——sow 27 February – 15 October
Watermelon23 March – 25 July20 April – 22 August11 May – 22 August
Zinniafrom 4 Aprilfrom 9 Mayfrom 30 May
Zucchini30 March – 24 August20 April – 14 September11 May – 14 September

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 Piacenza

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 4 days before the last spring frost and 15 °C 28 days after it.

SoilDateAgainst the last spring frost
5 °C30 January49 days earlier
10 °C16 March4 days earlier
15 °C17 April28 days later
18 °C11 May52 days later

Frost dates near Piacenza

Of the nearest cities on our list, the last spring frost ends earliest in Milan (28 February) and latest in Bergamo (6 April).

CityDistanceLast spring frostFirst autumn frost
Parma58 km18 March29 November
Milan60 km28 February30 November
Brescia68 km20 March28 November
Bergamo72 km6 April18 November
Mantua87 km2 March28 November

Seeds, seedlings and markets in Piacenza

Within 15 km of Piacenza OpenStreetMap lists 2 garden centres, 7 plant nurseries, 3 markets and 1 farm shop (collected 27 October 2026). The nearest plant nursery to the city centre is Il Vivaio, 4 km away.

  • Il Vivaio — plant nursery
    Via Ragazzi del 99, San Bonico · 4 km
  • Frutta e Verdura — farm shop
    Stradone Farnese 81c, Piacenza · 1 km
  • Vivaio Maserati — plant nursery
    Ponte Vangaro, 29020 Ponte Vangaro · 10 km

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Piacenza

Frosts in Piacenza usually come from about 1 December to about 20 March. 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 Piacenza by month

Average weather in Piacenza over 2016–2025: the warmest month is July. Months that average 20 °C or more by day: May–September (22.6–31.3 °C). Months that average 30 °C or more by day: July (31.3 °C) and August (31.2 °C). Nights average below 0 °C in January (-0.2 °C). About 943 mm of rain falls in a year, on 111 days; May is the wettest month (128 mm) and January the driest (46 mm).

MonthDay, °CNight, °CRain, mmRainy days
January7.7-0.2467
February11.12.1738
March15.13.9658
April19.37.9709
May22.612.612815
June28.918729
July31.320.1559
August31.220.17910
September25.815.6748
October19.91110410
November12.75.69610
December8.11.4818

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 1 November
Crocus1 November – end of December
Daffodil1 November – end of December
Garlic1 November – end of December
Grape hyacinthby 1 November
Helleboreby 1 November
Hyacinth1 November – end of December
Lilyby 1 November
Ornamental onionby 1 November
Peonyby 1 November
Saffronby 1 November
Snowdropby 1 November
Tulip1 November – end of December
Wild garlicby 1 November

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).