When to plant zucchini in San Marino: 16 May – 25 September

In San Marino, zucchini: sow for seedlings from 4 April to 4 September; plant into a greenhouse from 25 April to 25 September; plant out into open ground from 16 May to 25 September. For plants and seeds, the places nearby include GBmarket (farm shop, 11 km) and I 2 Riccioli Verdi (garden centre, 11 km); addresses and opening hours are below.

Zucchini in San Marino: soil, season and weather

In San Marino the soil, not frost, sets the date: the last frost is over around 9 February, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 16 May, 96 days later.

Last spring frost	9 February
Top 7 cm of soil at 18 °C	16 May, 96 days after the last frost
First autumn frost	12 December, 210 days after the start
Days in the bed to the first harvest (card)	36
First harvest, if planted in this window	21 June – 31 October
Days left for picking	174
Daylight	13:53 on 25 April, 14:46 on 16 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 7 rainy days

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

Zucchini in San Marino: care after planting

Planted on 16 May: in the first weeks water every 4 days.

Pests and diseases of zucchini to watch for:

Weather in San Marino during the zucchini season

About 614 mm of rain falls in the season; July is the driest month (46 mm) and November the wettest (103 mm).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	21.6	12.5	98	13	14:44
June	27.7	17.7	57	8	15:27
July	30	19.9	46	7	15:10
August	29.5	19.8	62	8	14:02
September	25	15.9	98	9	12:34
October	20.3	12	83	9	11:04
November	14.2	7.2	103	12	9:40
December	10.4	3.4	67	10	8:55

ERA5 2016–2025, Open-Meteo

Zucchini in nearby cities

Around San Marino, Ancona is 6 days earlier and Arezzo 24 days later.

City	Distance	Date	Difference
Rimini	16 km	16 May – 25 September	same day
Ravenna	56 km	15 May – 25 September	1 day earlier
Arezzo	70 km	9 June – 4 September	24 days later
Perugia	92 km	29 May – 8 September	13 days later
Ancona	93 km	10 May – 24 September	6 days earlier
Florence	97 km	28 May – 10 September	12 days later

Where to buy zucchini plants and seeds near San Marino

Buy plants ready to set out from 16 May to 25 September (from 25 April to 25 September for an unheated greenhouse); seed for raising your own is sown from 4 April to 4 September. Within 15 km of San Marino OpenStreetMap lists 8 garden centres, 5 farm-supply shops, 1 plant nursery, 1 market and 4 farm shops (collected 20 October 2026).

GBmarket — farm shop
Via Don Milani 23b · 11 km
Vivaio Sartini — garden centre
12 km
Agricolsemi spa — farm supply
5 km · agricolsemi.com
I 2 Riccioli Verdi — garden centre
Via Trasversale Marecchia, 47822 Santarcangelo di Romagna · Mon–Sat 08:00–12:30, 14:30–19:00; Sun 08:30–12:30 · 11 km · vivaioiduericcioliverdi.com

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