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Can You Grow Onion in Newfoundland and Labrador?

Canada · Canadian Zone 4 · zones 1, 2, 3, 4, 5

Grows well here

Onions grow well here — plant sets or transplants in early spring for a summer harvest.

Plant zones

2a–9b

Newfoundland and Labrador last frost

early May

Newfoundland and Labrador first frost

early October

Days to harvest

90–120 days

When to plant Onions in Newfoundland and Labrador

Start indoors

Mar 5

Transplant

May 1

Harvest

Jul 30 – Aug 29

Dates are approximate, based on Newfoundland and Labrador's average frost dates. Your exact yard may vary by microclimate.

About Onion

Onions are a staple crop that stores well and can be grown as sets transplants or from seed.

Growing from sets is easiest for beginners. Plant in early spring — onions are frost-tolerant. Day-length sensitive — choose short-day long-day or day-neutral varieties based on your latitude.

Full onion growing guide →

Gardening in Newfoundland and Labrador

Newfoundland has a subarctic to cool maritime climate. The island is Zone 4b-5b near the coast; Labrador is Zone 1-3. Short growing seasons but excellent for cold-hardy crops, root vegetables, and berries.

See what grows well in Newfoundland and Labrador →

Frequently asked questions

Can you grow Onion in Newfoundland and Labrador?

Onions grow well here — plant sets or transplants in early spring for a summer harvest.

What zone is Newfoundland and Labrador?

Newfoundland and Labrador spans Canadian Zone 4 (1, 2, 3, 4, 5).

When do you plant Onions in Newfoundland and Labrador?

Plant Onions around early May (start indoors Mar 5), harvest Jul 30 – Aug 29.