Greenly Garden
Get the app
EN

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

In Trieste, daffodil: 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.

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.

Daffodil 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, Tulip, Crocus and Hyacinth.

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

Plant daffodils three times the bulb’s height deep (RHS): about 13–15 cm for large bulbs, 15–20 cm apart (University of Georgia Extension). The RHS advises planting them early in autumn, ideally in September in the UK, so do not leave them late: aim for the start of the window, 29 October.

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.

Daffodils are long-lived: clumps slowly expand over the years (RHS). Leave the leaves for at least eight weeks after flowering — they feed next year’s flowers (University of Georgia Extension).

Squirrels avoid daffodils, so they can be planted among tulips to reduce losses (RHS). Daffodils are toxic to dogs, cats and horses; the bulbs are the most poisonous part, and a large amount can cause convulsions and heart rhythm problems (ASPCA).

Sources: RHS, University of Georgia Extension, Wisconsin Horticulture Extension, ASPCA.

Daffodil 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 daffodil 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 daffodils in Trieste?

In Trieste, daffodil: 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