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When to plant crocuses in Ivanovo: 11 September – 28 October

In Ivanovo, crocus: plant from 11 September to about 28 October.

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 date is about two weeks before the average daily temperature here falls below 0 °C (ten years of weather): an estimate, not the day the ground freezes, and a cold spell can freeze it earlier. Sources: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Crocus in Ivanovo: soil, season and weather

Nights then average below 0 °C in November–March; the coldest, January, averages -11.2 °C.

Planting11 September – 28 October
First autumn frost11 October
Coldest nightsJanuary, -11.2 °C
Soil back at 1 °C in spring5 April
Daylight13:10 on 11 September
Daylight at the winter solstice6:43

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

Crocus in Ivanovo: 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 Ivanovo the average daily temperature stays at 10 °C or lower for about 32 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 Ivanovo, Yaroslavl is 1 day earlier and Ryazan 12 days later.

CityDistanceDateDifference
Yaroslavl96 km10 September – 29 October1 day earlier
Vladimir102 km15 September – 30 October4 days later
Nizhny Novgorod200 km18 September – 29 October7 days later
Moscow248 km14 September – 2 November3 days later
Vologda255 km10 September – 25 October1 day earlier
Ryazan275 km23 September – 5 November12 days later

Where to buy crocus for planting in Ivanovo

Planting stock goes into the ground from 11 September to about 28 October; buy it before that. Within 15 km of Ivanovo OpenStreetMap lists 4 markets and 2 farm shops (collected 27 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Ivanovo?

In Ivanovo, crocus: plant from 11 September to about 28 October. 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 Ivanovo?

Last spring frost around 3 May, first autumn frost around 11 October.

Other crops in Ivanovo, with their dates