When to plant zucchini in Florence: 28 May – 10 September

In Florence, zucchini: sow for seedlings from 16 April to 20 August; plant into a greenhouse from 7 May to 10 September; plant out into open ground from 28 May to 10 September.

Zucchini in Florence: soil, season and weather

In Florence the soil, not frost, sets the date: the last frost is over around 23 March, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 28 May, 66 days later.

Last spring frost	23 March
Top 7 cm of soil at 18 °C	28 May, 66 days after the last frost
First autumn frost	27 November, 183 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	3 July – 16 October
Days left for picking	147
Daylight	14:24 on 7 May, 15:07 on 28 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 5 rainy days

The same dates in Florence hold for Cucumber, Bell Pepper, Eggplant, Pumpkin and Watermelon.

Zucchini in Florence: care after planting

Planted on 28 May: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Florence during the zucchini season

About 601 mm of rain falls in the season; July is the driest month (31 mm) and November the wettest (140 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	21.9	10.8	105	14	14:43
June	28.2	15.6	54	8	15:26
July	31.4	18	31	5	15:09
August	31.5	18.3	50	6	14:02
September	25.8	14.4	114	10	12:33
October	20.8	10.6	107	11	11:04
November	14.7	6.2	140	13	9:41

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around Florence, Livorno is 12 days earlier and Pisa 19 days later.

City	Distance	Date	Difference
Siena	50 km	26 May – 10 September	2 days earlier
Arezzo	61 km	9 June – 4 September	12 days later
Pisa	69 km	16 June – 1 September	19 days later
Livorno	79 km	from 16 May	12 days earlier
Bologna	80 km	16 May – 12 September	12 days earlier
San Marino	97 km	16 May – 25 September	12 days earlier

Where to buy zucchini plants and seeds near Florence

Buy plants ready to set out from 28 May to 10 September (from 7 May to 10 September for an unheated greenhouse); seed for raising your own is sown from 16 April to 20 August. Within 15 km of Florence OpenStreetMap lists 6 garden centres, 13 markets and 6 farm shops (collected 20 October 2026).

Mercato del Porcellino — market
1 km
Mercato di Sant'Ambrogio — market
1 km
Mercato di San Lorenzo — market
1 km
Mercato settimanale — market
4 km

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.

Questions