Nunavut Planting Zones

The territory of Nunavut is a vast and striking landscape, stretching across the Canadian Arctic with icy coastlines, tundra plains, and remote northern communities. While gardening in Nunavut presents unique challenges due to its extreme climate, innovative approaches—especially greenhouse gardening—are opening new doors for northern growers. Most of Nunavut falls within plant hardiness zones 0a to 1b, among the coldest in Canada.

In this article, you will learn:

As with all regions in Canada, it is important to understand that Canadian plant hardiness zones are calculated differently than those in the USDA system. Canada’s system factors in elements like wind exposure, length of frost-free period, snow cover, and overall precipitation.

Image from Natural Resources Canada

Characteristics of Nunavut Planting Region

Nunavut has an Arctic climate, characterized by long, frigid winters and brief, cool summers. The growing season is extremely short—usually no more than 30 to 60 frost-free days, depending on location. However, in summer, Nunavut experiences nearly continuous daylight for weeks on end, which supports accelerated plant growth within that small window.

Soils vary widely, but many areas have thin, rocky, or permafrost-influenced ground. Southern Nunavut communities like Rankin Inlet or Arviat offer slightly more favorable conditions compared to northernmost settlements such as Resolute or Grise Fiord.

While the natural environment is harsh, many communities are increasingly exploring cold-climate agriculture and food sovereignty solutions.

Challenges of Growing in Nunavut

1. Extreme Cold and Harsh Climate

Nunavut’s Arctic environment poses one of the toughest climates for gardening in the world. Temperatures remain below freezing for most of the year, with summer arriving late and departing early. Even during peak growing months, sudden cold snaps and frost events can damage or kill plants overnight.

2. Short Growing Season

Most of Nunavut experiences only 30 to 60 frost-free days per year, making it difficult for traditional crops to fully mature. The short season requires fast-growing, cold-hardy varieties, and limits the diversity of plants that can thrive without protection.

The Benefits of Using a Greenhouse in Prince Edward Island

Greenhouses are transforming food production in Nunavut by offering a protected, controlled environment that significantly expands what's possible in this northern territory.

1. Extend your Growing Season

  • Without a Greenhouse:
    Outdoor growing is extremely limited—most crops must complete their entire lifecycle in 6–8 weeks.

  • With a Greenhouse:
    A greenhouse can extend your growing season by several months, starting as early as March or April with supplemental heat and continuing into September or October.

With careful design, greenhouses can take advantage of Nunavut’s intense summer light while buffering against frost and wind.

Greenhouse from a customer in Nunavut

2. Grow a Wider Variety of Vegetables Without a Greenhouse:

 Only a small number of hardy, quick-maturing crops are suitable, including:

Turnips

Swiss Chard

Spinach

Radishes

Lettuce

Kale

Beets

Peas

 

With a Greenhouse:
You gain the ability to grow a much broader selection of foods, such as:

 Recommended vegetables for greenhouse growing include:

Broccoli

Brussel sprouts

Cabbage

Cauliflower

Cucumbers

Onions

Leeks

Bell Peppers

Pumpkins

Gourds

Squash

Zucchini

Tomatoes

Watermelon

Cantaloupe

Herbs

Sweet Corn

Eggplant

Potatoes

Carrots

 

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