Best Corn to Grow in Manitoba
Manitoba spans USDA Zones 2–4, typically Zone 3. We've broken out 32 corn varieties by zone — pick your zone below or find the right varieties for your specific part of the state.
Varieties
32
for Manitoba
USDA
Zones 2–4
85–135 days season
Beginner
16
easy to grow
Heirloom
12
heritage varieties
Manitoba in USDA Zones 2–4
Manitoba spans Zones 2–4. Variety lists below are organized by zone — start with your zone for the most accurate recommendations.
Growing Corn in Manitoba
Zone 3 gardeners face unique challenges when growing corn, but with the right varieties and timing, you can absolutely harvest sweet, homegrown corn despite the short growing season. The key is selecting varieties that mature quickly and can handle cooler soil temperatures. Look for corn with days to maturity of 75-85 days, as these will give you the best chance of success within your 120-day growing window. Early varieties like Early Sunglow and Golden Bantam are particularly well-suited to zone 3 conditions because they were specifically developed for northern climates.
The varieties on this list have been chosen for their ability to germinate in cooler soils, tolerate temperature fluctuations, and produce quality ears before your first frost arrives in mid-September. Focus on early to mid-season varieties rather than late-season types that need 100+ days. While zone 3's cool nights can actually enhance sugar development in sweet corn, the short season means you'll need to be strategic about variety selection and planting timing to ensure a successful harvest.
Zone 3 Corn for Manitoba★ Most of MB
32 varieties · Last frost May 15 · 120-day season
Zone 2 Corn for Manitoba
32 varieties · Last frost June 1 · 85-day season
Zone 4 Corn for Manitoba
32 varieties · Last frost May 10 · 135-day season
Zone 3 Growing Tips for Manitoba
Start corn seeds indoors 2-3 weeks before your last frost date (around late April) to get a jump on the season, but be prepared to harden off seedlings gradually since corn doesn't love transplanting. Direct seeding works better once soil temperature reaches 60°F consistently, which typically happens by late May in zone 3. Plant in blocks rather than single rows to ensure proper pollination, and consider successive plantings every 2 weeks through mid-June to extend your harvest window.
Soil preparation is crucial in zone 3 – work in compost and ensure good drainage, as cold, wet soil will cause seeds to rot. Black plastic mulch or row covers can help warm the soil faster and protect young plants from unexpected late frosts. If you're worried about the season ending too early, choose a mix of early varieties rather than gambling on longer-season types. Plant your earliest varieties by Memorial Day weekend, and don't plant anything that needs more than 85 days to maturity after June 15th.