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When to plant hyacinths in Pamplona: 31 October – end of December

In Pamplona, hyacinth: plant from 31 October to the end of December. For planting stock, the places nearby include Unzué e Hijos (farm supply, 5 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.

Hyacinth in Pamplona: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 1.4 °C.

Planting31 October – end of December
First autumn frost30 November
Coldest nightsJanuary, 1.4 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:23 on 31 October
Daylight at the winter solstice9:01

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

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

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

In Pamplona the average daily temperature stays at 10 °C or lower for about 21 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

Around Pamplona, Jaca is 30 days earlier and Bayonne 17 days later.

CityDistanceDateDifference
San Sebastián63 kmby 3 November3 days later
Logroño76 kmby 4 November4 days later
Bayonne77 kmby 17 November17 days later
Tudela82 kmby 7 November7 days later
Vitoria-Gasteiz84 km25 October – end of December6 days earlier
Jaca94 km1 October – end of December30 days earlier

Where to buy hyacinth for planting in Pamplona

Planting stock goes into the ground from 31 October to the end of December; buy it before that. Within 15 km of Pamplona OpenStreetMap lists 3 garden centres, 2 farm-supply shops, 4 markets and 1 farm shop (collected 7 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Pamplona?

In Pamplona, hyacinth: plant from 31 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 Pamplona?

Last spring frost around 21 March, first autumn frost around 30 November.

Other crops in Pamplona, with their dates