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When to plant hyacinths in Rome: by 10 November

In Rome, hyacinth: plant by 10 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 Green point (garden centre, 2 km) and Idea Verde (garden centre, 4 km); addresses and opening hours are below.

Hyacinth in Rome: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 3.8 °C.

Plantingby 10 November
First autumn frost10 December
Coldest nightsJanuary, 3.8 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:02 on 10 November
Daylight at the winter solstice9:08

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

Hyacinth in Rome: depth, winter cold, pests and pets

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

In Rome the average daily temperature stays at 10 °C or lower for about 11 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. That is less than the bulbs need, and without more cold they may not flower properly. Where winters are not cold enough for long enough, LSU AgCenter keeps tulip and hyacinth bulbs in the refrigerator for at least six to eight weeks before planting, and plants them only once the soil has cooled: warm soil can cancel the chilling. Keep fruit out of that refrigerator — ripening fruit gives off ethylene, which harms the flowers (Wisconsin Horticulture Extension).

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, LSU AgCenter, ASPCA.

Hyacinth in nearby cities

Around Rome, L'Aquila is 28 days earlier and San Marino 2 days later.

CityDistanceDateDifference
L'Aquila90 km13 October – end of December28 days earlier
Perugia135 km26 October – end of December15 days earlier
Pescara153 kmby 10 Novembersame day
Arezzo181 km22 October – end of December19 days earlier
Ancona209 kmby 11 November1 day later
San Marino227 kmby 12 November2 days later

Where to buy hyacinth for planting in Rome

Planting stock goes into the ground by 10 November; buy it before that. Within 15 km of Rome OpenStreetMap lists 26 garden centres, 5 plant nurseries, 87 markets and 12 farm shops (collected 7 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Rome?

In Rome, hyacinth: plant by 10 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 Rome?

Last spring frost around 27 January, first autumn frost around 10 December.

Other crops in Rome, with their dates