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Can You Grow Leek in New Brunswick?

Canada · Canadian Zone 5 · zones 4, 5, 6

Grows well here

Leeks grow well here — cold-hardy and can be harvested into late autumn.

Plant zones

3a–9b

New Brunswick last frost

mid-April

New Brunswick first frost

mid-October

Days to harvest

100–150 days

When to plant Leeks in New Brunswick

Start indoors

Jan 20

Transplant

Apr 15

Harvest

Jul 24 – Sep 12

Dates are approximate, based on New Brunswick's average frost dates. Your exact yard may vary by microclimate.

About Leek

Leeks are cold-hardy slow-growing vegetables that can be harvested well into autumn and even winter.

Start indoors in late winter — leeks need a very long season. Transplant deeply to blanch stems. Harvest after first frosts — cold improves flavour. Very cold-hardy surviving to -10°C.

Full leek growing guide →

Gardening in New Brunswick

New Brunswick has a maritime continental climate. The Saint John River Valley is Zone 5b-6a. Four distinct seasons with a productive 5-6 month growing season. Known for potatoes, blueberries, and fiddleheads.

See what grows well in New Brunswick →

Frequently asked questions

Can you grow Leek in New Brunswick?

Leeks grow well here — cold-hardy and can be harvested into late autumn.

What zone is New Brunswick?

New Brunswick spans Canadian Zone 5 (4, 5, 6).

When do you plant Leeks in New Brunswick?

Plant Leeks around mid-April (start indoors Jan 20), harvest Jul 24 – Sep 12.