When to plant daffodils in Jaca: 1 October – end of December

In Jaca, daffodil: plant from 1 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 Jaca: soil, season and weather

Nights then average below 0 °C in December–March; the coldest, January, averages -3.3 °C.

Planting	1 October – end of December
First autumn frost	31 October
Coldest nights	January, -3.3 °C
Soil back at 7 °C in spring	7 April
Daylight	11:47 on 1 October
Daylight at the winter solstice	9:03

The same dates in Jaca hold for Garlic, Tulip, Crocus and Hyacinth.

Daffodil in Jaca: 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, 1 October.

In Jaca the average daily temperature stays at 10 °C or lower for about 28 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

All the nearest cities on our list plant daffodil later than Jaca; the closest date is in Huesca, 26 days later.

City	Distance	Date	Difference
Huesca	47 km	by 27 October	26 days later
Pau	86 km	by 4 November	34 days later
Pamplona	94 km	31 October – end of December	30 days later
Tudela	102 km	by 7 November	37 days later
Zaragoza	104 km	by 20 November	50 days later
Bayonne	129 km	by 17 November	47 days later

Where to buy daffodil for planting in Jaca

Planting stock goes into the ground from 1 October to the end of December; buy it before that. Within 15 km of Jaca OpenStreetMap lists 1 farm shop (collected 28 October 2026).

Comercial Agraria El Llano — farm shop
2 km

Questions