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When to plant crocuses in Mendoza: by 18 May

In Mendoza, crocus: plant by 18 May. The winter here is too mild for our late-planting rule, so we give no later limit. For planting stock, the places nearby include Heian Vivero (garden centre, 1 km) and Vivero (garden centre, 2 km); addresses and opening hours are below.

Crocus in Mendoza: soil, season and weather

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

Plantingby 18 May
First autumn frost17 June
Coldest nightsJuly, 3.1 °C
Soil back at 1 °C in springalready in the first week of July
Daylight10:23 on 18 May
Daylight at the winter solstice9:59

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

Crocus in Mendoza: 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 Mendoza the average daily temperature stays at 10 °C or lower for about 9 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

Around Mendoza, San Rafael is 12 days earlier and San Luis 6 days later.

CityDistanceDateDifference
San Juan153 kmby 21 May3 days later
San Rafael198 kmby 6 May12 days earlier
Rancagua227 kmby 13 May5 days earlier
San Luis238 kmby 24 May6 days later
Curicó322 kmby 8 May10 days earlier
Talca383 kmby 14 May4 days earlier

Where to buy crocus for planting in Mendoza

Planting stock goes into the ground by 18 May; buy it before that. Within 15 km of Mendoza OpenStreetMap lists 13 garden centres, 3 plant nurseries, 12 markets and 2 farm shops (collected 7 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Mendoza?

In Mendoza, crocus: plant by 18 May. The winter here is too mild for our late-planting rule, so we give no later limit.

When is the last spring frost in Mendoza?

Last spring frost around 10 August, first autumn frost around 17 June.

Other crops in Mendoza, with their dates