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When to plant hyacinths in San Marino: by 12 November

In San Marino, hyacinth: plant by 12 November. The winter here is too mild for our late-planting rule, so we give no later limit. For planting stock, the places nearby include I Sette Punti Verdi (garden centre, 7 km) and Fratelli Pesaresi (garden centre, 8 km); addresses and opening hours are below.

Hyacinth in San Marino: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 2.2 °C.

Plantingby 12 November
First autumn frost12 December
Coldest nightsJanuary, 2.2 °C
Soil back at 1 °C in springalready in the first week of January
Daylight9:47 on 12 November
Daylight at the winter solstice8:54

The same dates in San Marino hold for Garlic, Tulip, Daffodil and Crocus.

Hyacinth in San Marino: depth, winter cold, pests and pets

Plant hyacinths 10 cm deep, at least 7.5 cm apart (RHS).

In San Marino the average daily temperature stays at 10 °C or lower for about 17 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 12–15 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Flowers get smaller in the years after planting: for full spikes, replace the bulbs or add a few new ones each autumn (RHS).

If squirrels are a problem, protect the bulbs with wire mesh (RHS). Hyacinths are toxic to dogs, cats and horses: intense vomiting and diarrhoea (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Hyacinth in nearby cities

All the nearest cities on our list plant hyacinth earlier than San Marino; the closest date is in Ancona, 1 day earlier.

CityDistanceDateDifference
Arezzo70 km22 October – end of December21 days earlier
Perugia92 km26 October – end of December17 days earlier
Ancona93 kmby 11 November1 day earlier
Florence97 kmby 28 October15 days earlier
Bologna108 km30 October – end of December13 days earlier
Modena144 km31 October – end of December12 days earlier

Where to buy hyacinth for planting in San Marino

Planting stock goes into the ground by 12 November; buy it before that. 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).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in San Marino?

In San Marino, hyacinth: plant by 12 November. The winter here is too mild for our late-planting rule, so we give no later limit.

When is the last spring frost in San Marino?

Last spring frost around 9 February, first autumn frost around 12 December.

Other crops in San Marino, with their dates