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When to plant crocuses in Aranda de Duero: 14 October – end of December

In Aranda de Duero, crocus: plant from 14 October to the end of December. For planting stock, the places nearby include La Morera (garden centre, 1 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.

Crocus in Aranda de Duero: soil, season and weather

Nights then average below 0 °C in January; the coldest, January, averages -0.2 °C.

Planting14 October – end of December
First autumn frost13 November
Coldest nightsJanuary, -0.2 °C
Soil back at 1 °C in springalready in the first week of January
Daylight11:11 on 14 October
Daylight at the winter solstice9:09

The same dates in Aranda de Duero hold for Garlic, Tulip, Daffodil and Hyacinth.

Crocus in Aranda de Duero: depth, winter cold, pests and pets

Plant Dutch crocuses (Crocus vernus) about 12 cm deep and 9 cm apart; smaller species go 7–10 cm deep (RHS).

In Aranda de Duero 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.

Crocuses multiply on their own (they naturalise); in a lawn, hold off mowing until their leaves die back (RHS).

Birds, squirrels and rodents damage crocuses; planting under metal mesh may reduce losses (RHS). Spring crocus gives dogs and cats vomiting and diarrhoea; do not confuse it with autumn crocus (Colchicum), which is very toxic (Pet Poison Helpline).

Sources: RHS, Wisconsin Horticulture Extension, Pet Poison Helpline.

Crocus in nearby cities

Around Aranda de Duero, Segovia is 5 days earlier and Valladolid 14 days later.

CityDistanceDateDifference
Burgos75 km18 October – end of December4 days later
Palencia78 km13 October – end of December1 day earlier
Valladolid86 km28 October – end of December14 days later
Segovia88 km9 October – end of December5 days earlier
Soria102 km10 October – end of December4 days earlier
Guadalajara (Spain)124 kmby 25 October11 days later

Where to buy crocus for planting in Aranda de Duero

Planting stock goes into the ground from 14 October to the end of December; buy it before that. Within 15 km of Aranda de Duero OpenStreetMap lists 4 garden centres (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Aranda de Duero?

In Aranda de Duero, crocus: plant from 14 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 Aranda de Duero?

Last spring frost around 15 April, first autumn frost around 13 November.

Other crops in Aranda de Duero, with their dates