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When to plant crocuses in Fresno: by 5 November

In Fresno, crocus: plant by 5 November. The winter here is too mild for our late-planting rule, so we give no later limit. For planting stock, the places nearby include Gibson Farm Market (farm shop, 8 km) and Green Source Genetics - Clones in Fresno (garden centre, 9 km); addresses and opening hours are below.

Crocus in Fresno: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in January, average 4.5 °C.

Plantingby 5 November
First autumn frost5 December
Coldest nightsJanuary, 4.5 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:32 on 5 November
Daylight at the winter solstice9:39

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

Crocus in Fresno: 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 Fresno the average daily temperature stays at 10 °C or lower for about 6 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 Fresno, Carson City is 44 days earlier and Santa Barbara 10 days later.

CityDistanceDateDifference
Stockton190 kmby 3 November2 days earlier
Sacramento254 kmby 11 November6 days later
Santa Barbara259 kmby 15 November10 days later
Carson City268 km22 September – end of December44 days earlier
Reno309 km28 September – end of December38 days earlier
Las Vegas419 kmby 12 November7 days later

Where to buy crocus for planting in Fresno

Planting stock goes into the ground by 5 November; buy it before that. Within 15 km of Fresno OpenStreetMap lists 4 garden centres, 1 farm-supply shop and 1 farm shop (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Fresno?

In Fresno, crocus: plant by 5 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 Fresno?

Last spring frost around 5 February, first autumn frost around 5 December.

Other crops in Fresno, with their dates