Best Squash & Cucumbers to Grow in Northwest Territories
Northwest Territories spans USDA Zones 1–2, typically Zone 3. We've broken out 60 squash varieties by zone — pick your zone below or find the right varieties for your specific part of the state.
Varieties
60
for Northwest Territories
USDA
Zones 1–2
55–85 days season
Beginner
24
easy to grow
Heirloom
36
heritage varieties
Northwest Territories in USDA Zones 1–2
Northwest Territories spans Zones 1–2. Variety lists below are organized by zone — start with your zone for the most accurate recommendations.
Growing Squash & Cucumbers in Northwest Territories
Zone 3 presents unique opportunities and challenges for squash growers. While the short 120-day growing season from mid-May to mid-September might seem limiting, it's actually perfect for many squash varieties that thrive in cool nights and warm days. The key challenge is selecting varieties that can mature before that first September frost hits, while maximizing the intense summer growing period when daylight hours are long and plants can put on impressive growth.
When choosing squash for Zone 3, prioritize varieties with shorter days to maturity—typically 90-110 days for winter squash and 45-60 days for summer types. Look for cold-tolerant varieties that can handle cool soil at planting time and won't shut down if temperatures dip unexpectedly. Bush varieties often work better than vining types since they concentrate their energy into fruit production faster, though some compact vining varieties like Tromboncino can work with season extension techniques.
The varieties listed here have been selected specifically for their ability to thrive in Zone 3's conditions. From quick-producing summer squash like Black Beauty Zucchini to reliable winter keepers like Waltham Butternut, these picks will give you the best chance of a successful harvest before Jack Frost arrives.
Zone 2 Squash & Cucumbers for Northwest Territories
60 varieties · Last frost June 1 · 85-day season
Zone 1 Squash & Cucumbers for Northwest Territories
60 varieties · Last frost June 15 · 55-day season
Zone 3 Growing Tips for Northwest Territories
Start squash seeds indoors 2-3 weeks before your last frost date (so early to mid-May for Zone 3). Use biodegradable pots since squash roots don't like transplant shock, and keep seedlings warm—around 70-75°F. Don't rush to transplant outdoors; wait until soil temperature reaches at least 60°F and nighttime temperatures stay consistently above 50°F, usually late May to early June. Cold soil will stunt growth and invite fungal problems that can ruin your entire season.
Season extension is crucial in Zone 3. Use black plastic mulch or landscape fabric to warm soil faster in spring, and have row covers ready for unexpected late spring or early fall cold snaps. Wall-o-water or other plant protectors can buy you an extra 2-3 weeks on both ends of the season. Choose the warmest, most protected spot in your garden—ideally with southern exposure and some wind protection. Many Zone 3 gardeners have success planting squash in raised beds or containers that warm up faster than ground-level soil.
Watch for common Zone 3 challenges like slow germination in cool soil, powdery mildew during humid summer periods, and vine borers. Succession plant summer squash every 2 weeks through July to ensure continuous harvest, but get winter squash planted by mid-June at the latest to ensure proper maturation before frost.