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When to plant crocuses in Zaragoza: by 20 November

In Zaragoza, crocus: plant by 20 November. The winter here is too mild for our late-planting rule, so we give no later limit.

Crocus in Zaragoza: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 3.1 °C.

Plantingby 20 November
First autumn frost20 December
Coldest nightsJanuary, 3.1 °C
Soil back at 1 °C in springalready in the first week of January
Daylight9:42 on 20 November
Daylight at the winter solstice9:09

The same dates in Zaragoza hold for Garlic, Tulip, Daffodil and Hyacinth.

Crocus in Zaragoza: 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 Zaragoza the average daily temperature stays at 10 °C or lower for about 12 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. That is less than the bulbs need, and without more cold they may not flower properly. The cold can also be given in a refrigerator at about 2–7 °C, as Wisconsin Horticulture Extension does for crocuses forced in pots.

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

All the nearest cities on our list plant crocus earlier than Zaragoza; the closest date is in Lleida, 1 day earlier.

CityDistanceDateDifference
Huesca67 kmby 27 October24 days earlier
Tudela76 kmby 7 November13 days earlier
Jaca104 km1 October – end of December50 days earlier
Lleida126 kmby 19 November1 day earlier
Soria132 km10 October – end of December41 days earlier
Pamplona143 km31 October – end of December20 days earlier

Where to buy crocus for planting in Zaragoza

Planting stock goes into the ground by 20 November; buy it before that. Within 15 km of Zaragoza OpenStreetMap lists 3 garden centres, 4 plant nurseries and 70 markets (collected 7 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Zaragoza?

In Zaragoza, crocus: plant by 20 November. The winter here is too mild for our late-planting rule, so we give no later limit.

When is the last spring frost in Zaragoza?

Last spring frost around 28 January, first autumn frost around 20 December.

Other crops in Zaragoza, with their dates