When to plant zucchini in Piacenza: 11 May – 14 September

In Piacenza, zucchini: sow for seedlings from 30 March to 24 August; plant into a greenhouse from 20 April to 14 September; plant out into open ground from 11 May to 14 September.

Zucchini in Piacenza: soil, season and weather

In Piacenza the soil, not frost, sets the date: the last frost is over around 20 March, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 11 May, 52 days later.

Last spring frost	20 March
Top 7 cm of soil at 18 °C	11 May, 52 days after the last frost
First autumn frost	1 December, 204 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	16 June – 20 October
Days left for picking	168
Daylight	13:43 on 20 April, 14:41 on 11 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 9 rainy days

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

Zucchini in Piacenza: care after planting

Planted on 11 May: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in Piacenza during the zucchini season

About 689 mm of rain falls in the season; July is the driest month (55 mm) and May the wettest (128 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	22.6	12.6	128	15	14:50
June	28.9	18	72	9	15:36
July	31.3	20.1	55	9	15:18
August	31.2	20.1	79	10	14:07
September	25.8	15.6	74	8	12:35
October	19.9	11	104	10	11:02
November	12.7	5.6	96	10	9:34
December	8.1	1.4	81	8	8:47

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

All the nearest cities on our list plant zucchini later than Piacenza; the closest date is in Milan, 1 day later.

City	Distance	Date	Difference
Parma	58 km	19 May – 12 September	8 days later
Milan	60 km	12 May – 13 September	1 day later
Brescia	68 km	15 May – 11 September	4 days later
Bergamo	72 km	31 May – 1 September	20 days later
Mantua	87 km	14 May – 11 September	3 days later
Genoa	93 km	20 June – 9 September	40 days later

Where to buy zucchini plants and seeds near Piacenza

Buy plants ready to set out from 11 May to 14 September (from 20 April to 14 September for an unheated greenhouse); seed for raising your own is sown from 30 March to 24 August. Within 15 km of Piacenza OpenStreetMap lists 2 garden centres, 7 plant nurseries, 3 markets and 1 farm shop (collected 27 October 2026).

Agrar Center — garden centre
7 km
Mazzocchi Sementi s.r.l. — garden centre
14 km
Cooperativa Sociale Il Germoglio - ONLUS Vivaio — plant nursery
2 km
Vivaio Ferrari — plant nursery
6 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