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When to plant crocuses in Fredericton: 28 September – 11 November

In Fredericton, crocus: plant from 28 September to about 11 November. For planting stock, the places nearby include Shur-Gain Feeds 'n' Needs (farm supply, 2 km) and Ferguson's Christmas Trees (plant nursery, 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 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 Fredericton: soil, season and weather

Nights then average below 0 °C in November–April; the coldest, January, averages -12 °C.

Planting28 September – 11 November
First autumn frost28 October
Coldest nightsJanuary, -12 °C
Soil back at 1 °C in spring7 April
Daylight11:54 on 28 September
Daylight at the winter solstice8:39

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

Crocus in Fredericton: 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 Fredericton the average daily temperature stays at 10 °C or lower for about 29 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

1 of the nearest cities share Fredericton's date.

CityDistanceDateDifference
Moncton145 km5 October – 17 November7 days later
Charlottetown275 km3 October – 20 November5 days later
Halifax282 km10 October – 1 December12 days later
Augusta305 km4 October – 20 November6 days later
Quebec City361 km28 September – 4 Novembersame day
Portland, Maine381 km5 October – 26 November7 days later

Where to buy crocus for planting in Fredericton

Planting stock goes into the ground from 28 September to about 11 November; buy it before that. Within 15 km of Fredericton OpenStreetMap lists 4 garden centres, 1 farm-supply shop, 2 plant nurseries, 2 markets and 6 farm shops (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in Fredericton?

In Fredericton, crocus: plant from 28 September to about 11 November. 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 Fredericton?

Last spring frost around 30 April, first autumn frost around 28 October.

Other crops in Fredericton, with their dates