Atlantic Canada Vegetable Gardening Guide

Nova Scotia, New Brunswick, PEI and Newfoundland: an ocean climate with cool summers, late springs and high rainfall. Frost-free seasons at the stations below run from about 130 to 155 days.

Frost dates, temperatures and precipitation are Environment and Climate Change Canada climate normals (1981–2010). Growing advice is checked against provincial agriculture departments and Canadian universities.

Frost dates and climate

Average dates of the last spring frost and first fall frost, and the frost-free period between them, at major stations in the region. The growing season is that frost-free period; choose varieties that mature within it.

What grows well here, and what struggles

The first fall frost ends the season, so choose varieties whose days to maturity fit the frost-free period. Row covers add some frost protection and extend the season; start long-season crops indoors. Kale, cabbage and broccoli do well in cool autumn weather and stand light frosts.

Month by month

What our month guides recommend for Atlantic Canada. Each month links to the full guide.

• March: start indoors: Count back from your last frost date, outdoors: Nothing yet
• April: indoors: By your frost date, outdoors: Cool-season crops under cold frames or row covers
• May: outdoors: Cool-season crops under row covers, indoors or waiting: Harden off transplants for a week
• June: sow outdoors: Warm-season crops once soil warms, also: Row covers against insects as well as cold
• July: sow or plant now: Fast fall crops, timed with the Dalhousie formula, also: Water seedbeds well in dry spells
• August: sow or plant now: Fall crops timed with the Dalhousie formula, notes: Sow after rain; cover seed deeper
• September: sow or plant now: Cool-season crops in cold frames, also: Row covers on frosty nights
• October: garlic timing: Use the freeze-up rule below, other october work: Leave hardy crops in the ground under deep mulch
• November: sow or plant: Nothing new, main jobs: Deep mulch over crops left in the ground
• December: outdoors: Pick mulched crops until a hard frost or deep snow, indoors and storage: Microgreens; check stored crops

Crop guides to start with

Guides for crops that appear in this region’s month-by-month plantings:

• Potatoes
• Carrots
• Kale
• Cabbage
• Broccoli
• Peas
• Lettuce
• Beets
• Garlic
• Spinach
• Green beans
• Onions
• Leeks
• Radishes
• Parsnips

Weather and soil notes

Precipitation is high, about 1,160–1,530 mm a year at these stations, with 290–335 cm of snowfall; July average highs are only about 21–25°C, coolest in St. John’s.

Back to regional gardening in Canada, or see the Canada vegetable planting calendar.

References

• Environment and Climate Change Canada: Canadian Climate Normals 1981–2010 (frost dates, temperature, precipitation)
• Manitoba Agriculture: Agricultural climate of Manitoba
• University of Saskatchewan, Gardening at USask: Determining planting dates
• Dalhousie University Faculty of Agriculture, Extended Learning: Sowing seed (Garden Box series)
• Dalhousie University Faculty of Agriculture, Extended Learning: Vegetable gardening in the fall (Garden Box series)
• University of Saskatchewan, Gardening at USask: Row coverings in no-till gardening
• Dalhousie University Faculty of Agriculture, Extended Learning: Managing the garden: season extension and frost protection
• Ontario Ministry of Agriculture, Food and Agribusiness: Growing strawberries for home gardens
• University of Saskatchewan, Gardening at USask: Growing your own transplants
• Manitoba Northern Healthy Foods Initiative: Starting seeds indoors
• Dalhousie University Faculty of Agriculture, Extended Learning: Vegetable gardening in the fall (Garden Box series)
• Iowa State University Extension: What’s the difference between cool and warm season veggies?
• University of Illinois Extension: Planting a fall vegetable garden
• Alabama Cooperative Extension System: Basics of fall vegetable gardening

Figures in the tables are the official averages named above. Every other statement is supported by at least three of these sources. The month-by-month notes summarise our own month guides, each of which lists its sources. All sources were checked on 24 October 2026.

Last reviewed: 24 October 2026