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When to plant crocuses in Medford: 20 September – end of December

In Medford, crocus: plant from 20 September to the end of December. For planting stock, the places nearby include Dunbar Farms Honor Barn Farm Stand (farm shop, 5 km) and Flowerland (garden centre, 6 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 Medford: soil, season and weather

Nights then average below 0 °C in December–March; the coldest, February, averages -1.6 °C.

Planting20 September – end of December
First autumn frost20 October
Coldest nightsFebruary, -1.6 °C
Soil back at 1 °C in springalready in the first week of January
Daylight12:18 on 20 September
Daylight at the winter solstice9:04

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

Crocus in Medford: 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 Medford the average daily temperature stays at 10 °C or lower for about 25 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

All the nearest cities on our list plant crocus later than Medford; the closest date is in Reno, 8 days later.

CityDistanceDateDifference
Eugene190 km29 September – end of December9 days later
Redding201 kmby 11 November52 days later
Salem287 km18 October – end of December28 days later
Portland352 km23 October – end of December33 days later
Reno407 km28 September – end of December8 days later
Sacramento436 kmby 11 November52 days later

Where to buy crocus for planting in Medford

Planting stock goes into the ground from 20 September to the end of December; buy it before that. Within 15 km of Medford OpenStreetMap lists 13 garden centres, 2 farm-supply shops, 3 markets and 10 farm shops (collected 29 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Medford?

In Medford, crocus: plant from 20 September 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 Medford?

Last spring frost around 30 April, first autumn frost around 20 October.

Other crops in Medford, with their dates