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When to plant tulips in Trieste: 29 October – end of December

In Trieste, tulip: plant from 29 October to the end of December. For planting stock, the places nearby include Trgoargo (farm supply, 12 km) and Kmetija Kaprolovi (farm shop, 15 km); addresses and opening hours are below.

Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. Mulch after planting.

The average daily temperature here stays above 0 °C all winter, and at least three months average 7 °C or less: our rule of thumb for the winter cold spring bulbs need. Sources: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS.

Tulip in Trieste: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 0.1 °C.

Planting29 October – end of December
First autumn frost28 November
Coldest nightsJanuary, 0.1 °C
Soil back at 7 °C in spring21 February
Daylight10:18 on 29 October
Daylight at the winter solstice8:41

The same dates in Trieste hold for Garlic, Daffodil, Crocus and Hyacinth.

Tulip in Trieste: depth, winter cold, pests and pets

Plant tulips at a depth of two to three times the bulb’s height, at least twice the bulb’s width apart, pointed end up (RHS).

In Trieste the average daily temperature stays at 10 °C or lower for about 22 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 15–17 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Border tulips often fail to flower in their second year if left in the ground, so many gardeners grow them for one spring and plant fresh bulbs each autumn; Darwin hybrid and Kaufmanniana tulips reflower more reliably (RHS). Soils that stay wet in summer make reflowering difficult (RHS): in Trieste the three warmest months bring about 290 mm of rain together.

Grey squirrels often dig up tulip bulbs: lay chicken wire over the bed until the leaves appear, or plant daffodils among them, which squirrels avoid (RHS). Tulips are toxic to dogs, cats and horses, the bulb most of all (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Tulip in nearby cities

Around Trieste, Klagenfurt is 65 days earlier and Venice 8 days later.

CityDistanceDateDifference
Udine63 km23 October – end of December6 days earlier
Venice115 km6 November – end of December8 days later
Klagenfurt115 km25 August – 30 October65 days earlier
Treviso120 km24 October – end of December5 days earlier
Padua150 km29 October – end of Decembersame day
Zagreb172 km23 October – end of December6 days earlier

Where to buy tulip for planting in Trieste

Planting stock goes into the ground from 29 October to the end of December; buy it before that. Within 15 km of Trieste OpenStreetMap lists 19 garden centres, 2 farm-supply shops, 1 plant nursery, 9 markets and 3 farm shops (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant tulips in Trieste?

In Trieste, tulip: plant from 29 October to the end of December. Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. Mulch after planting.

When is the last spring frost in Trieste?

Last spring frost around 19 March, first autumn frost around 28 November.

Other crops in Trieste, with their dates