Greenly Garden

Last and first frost dates in Florence

Italy

In Florence the last spring frost usually comes around 23 March and the first autumn frost around 27 November, which leaves about 249 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 3 May to 7 August.

Last spring frostaround 23 March
First autumn frostaround 27 November
Frost-free days249 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 Florence?

The last frost in Florence usually comes around 23 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 2 March, while corn waits until 5 April. The first autumn frost follows around 27 November, about 249 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha28 January – 19 August9 March – 28 September30 March – 28 September
Ageratumfrom 15 February—from 3 May
Arugula——sow 2 March – 23 October
Basil30 March – 25 September7 May – 2 November28 May – 2 November
Beet——sow 2 March – 28 September
Bell Pepper8 March – 8 June7 May – 7 August28 May – 7 August
Black-eyed Susanfrom 6 January—from 30 March
Bok Choy2 February – 6 October9 March – 10 November30 March – 10 November
Borage——sow 30 March – 3 October
Broad bean——sow 2 March – 19 August
Broccoli——sow 2 March – 12 August
Brussels Sprouts26 December – 10 July9 February – 24 August2 March – 24 August
Busy Lizziefrom 5 January—from 30 March
Cabbage——sow 2 March – 20 July
Calendula——sow from 2 March
Carrot——sow 2 March – 4 September
Cauliflower29 December – 12 August9 February – 23 September2 March – 23 September
Celeriac22 December – 9 June9 March – 25 August30 March – 25 August
Celery22 December – 19 June9 March – 4 September30 March – 4 September
Celosiafrom 5 Marchfrom 19 Aprilfrom 10 May
Chamomile——sow 2 March – 23 September
Chayote17 December – 2 June15 March – 29 August5 April – 29 August
Chickpea——sow 2 March – 9 August
Chicory15 January – 3 September—2 March – 28 September
Chili Pepper8 March – 15 July7 May – 13 September28 May – 13 September
China asterfrom 16 Marchfrom 7 Mayfrom 28 May
Chives——sow 2 March – 14 September
Cilantro——sow 2 March – 24 September
Corn——sow 5 April – 9 August
Corn poppy——sow from 2 March
Cosmosfrom 5 Marchfrom 19 Aprilfrom 10 May
Cucumber9 April – 15 August7 May – 12 September28 May – 12 September
Daikon——sow 2 March – 21 September
Delphiniumfrom 12 December—from 2 March
Dill——sow 2 March – 4 October
Edging lobeliafrom 5 January—from 30 March
Eggplant8 March – 8 June7 May – 7 August28 May – 7 August
Florence fennel23 January – 19 August9 March – 3 October30 March – 3 October
Foxglovefrom 24 November—from 2 March
Garden sorrel——sow 2 March – 22 September
Green Beans——sow 10 May – 17 August
Hollyhock——sow from 2 March
Hyssop——sow 2 March – 15 August
Kale——sow 2 March – 16 September
Kiwano11 March – 22 August12 April – 23 September3 May – 23 September
Kohlrabi——sow 2 March – 26 September
Leek1 December – 31 May9 February – 9 August2 March – 9 August
Lemon balm——sow 2 March – 18 September
Lettuce——sow 2 March – 1 October
Lisianthusfrom 14 Novemberfrom 9 Februaryfrom 2 March
Lovage——sow from 2 March
Luffa26 March – 16 June7 May – 28 July28 May – 28 July
Marigoldfrom 26 Januaryfrom 9 Marchfrom 30 March
Marjoram8 March – 3 September—28 May – 2 November
Melon9 April – 2 August7 May – 30 August28 May – 30 August
Microgreens——sow 10 May – 13 November
Moringa25 March – 8 September19 May – 2 November9 June – 2 November
Moss rosefrom 12 January—from 30 March
Mustard greens——sow 2 March – 13 October
Napa cabbage4 February – 13 September9 March – 16 October30 March – 16 October
Nasturtiumfrom 30 Januaryfrom 9 Marchfrom 30 March
Okra26 March – 27 August7 May – 8 October28 May – 8 October
Oregano11 December – 24 August9 February – 23 October2 March – 23 October
Pansyfrom 15 Decemberfrom 9 Februaryfrom 2 March
Parsley——sow 2 March – 12 September
Parsnip——sow 2 March – 1 August
Peanut31 March – 23 July7 May – 29 August28 May – 29 August
Peas——sow 2 March – 14 September
Petuniafrom 5 Marchfrom 7 Mayfrom 28 May
Physalis26 February – 20 July12 April – 3 September3 May – 3 September
Pumpkin26 March – 21 June7 May – 2 August28 May – 2 August
Purple coneflowerfrom 9 December—from 2 March
Radish——sow 2 March – 28 October
Sage22 December – 20 August9 February – 8 October2 March – 8 October
Scarlet sagefrom 19 February—from 3 May
Snapdragonfrom 6 Decemberfrom 9 Februaryfrom 2 March
Soybean——sow 28 May – 8 September
Spinach——sow 2 March – 3 October
Stevia22 February – 11 July12 April – 29 August3 May – 29 August
Stock——sow from 2 March
Sunflower——sow from 10 May
Sweet alyssum——sow from 2 March
Sweet Corn3 March – 3 September25 March – 25 September15 April – 25 September
Sweet peafrom 29 Decemberfrom 9 Februaryfrom 2 March
Sweet William——sow from 2 March
Swiss Chard——sow 2 March – 28 September
Thyme——sow 2 March – 9 August
Tomato19 February – 16 June12 April – 7 August3 May – 7 August
Turnip——sow 2 March – 30 September
Watercress——sow 2 March – 11 October
Watermelon9 April – 21 July7 May – 18 August28 May – 18 August
Zinniafrom 14 Aprilfrom 19 Mayfrom 9 June
Zucchini16 April – 20 August7 May – 10 September28 May – 10 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 Florence

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 41 days after it.

SoilDateAgainst the last spring frost
5 °Calready in the first week of January—
10 °C16 March7 days earlier
15 °C3 May41 days later
18 °C28 May66 days later

Frost dates near Florence

Of the nearest cities on our list, the last spring frost ends earliest in Livorno (22 January) and latest in Pisa (9 April).

CityDistanceLast spring frostFirst autumn frost
Siena50 km16 March27 November
Arezzo61 km6 April21 November
Pisa69 km9 April18 November
Livorno79 km22 January—
Bologna80 km10 March29 November

Seeds, seedlings and markets in Florence

Within 15 km of Florence OpenStreetMap lists 6 garden centres, 13 markets and 6 farm shops (collected 20 October 2026). The nearest garden centre to the city centre is Centro Agricolo Toscano, 3 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Florence

Frosts in Florence usually come from about 27 November to about 23 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 Florence by month

Average weather in Florence over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: May–October (20.8–31.5 °C). Months that average 30 °C or more by day: July (31.4 °C) and August (31.5 °C). No month averages below 0 °C at night; the coldest nights, in January, average 1.5 °C. About 1061 mm of rain falls in a year, on 124 days; November is the wettest month (140 mm) and July the driest (31 mm).

MonthDay, °CNight, °CRain, mmRainy days
January101.58012
February12.32.79811
March14.749211
April18.46.68010
May21.910.810514
June28.215.6548
July31.418315
August31.518.3506
September25.814.411410
October20.810.610711
November14.76.214013
December11.22.711013

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 28 October
Crocusby 28 October
Daffodilby 28 October
Garlic28 October – end of December
Grape hyacinthby 28 October
Helleboreby 28 October
Hyacinthby 28 October
Lilyby 28 October
Ornamental onionby 28 October
Peonyby 28 October
Saffronby 28 October
Snowdropby 28 October
Tulipby 28 October
Wild garlicby 28 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).