Zone 1 Vegetable Planting Calendar

Plan a resilient Zone 1 garden with protected seed starting, cold-tolerant crops, and carefully timed summer planting.

View Planting Schedule

Average annual extreme minimum

−60–−50°F

JUN

Typical last spring frostLocal elevation, latitude, and microclimates can shift this period.

AUG

Typical first fall frostUse your ZIP-code frost dates and forecast for final decisions.

Zone 1A & 1BSelect your subzone for more useful timing

About 60–90 DaysA broad planning estimate with significant local variation

Season-Smart PlantingSeason extension, fast-maturing varieties, and protected growing are especially valuable.

Plan around your subzone

Choose Zone 1A or Zone 1B

Zone 1A and 1B differ by five degrees of winter minimum temperature. Zone 1B is modeled only one week earlier in spring and one week later in fall; your local frost dates, snow cover, elevation, and soil temperature remain more important.

Zone 1A Planting Schedule

Start indoorsDirect sowTransplant/plant

Swipe horizontally to see later months.

Planning guidance only. Hardiness zones describe winter minimums; local frost dates and soil temperature should anchor annual vegetable planting. Give fall crops additional time because growth slows as days shorten.

Primary season in Zone 1

Use transplants and short-season varieties.

Choose varieties suited to your actual season length and use local soil temperature, weather, and extension guidance before planting.

Second season in Zone 1

Protect crops before early cold returns.

Build in extra time as light levels change, and use protection, shade, or drainage practices appropriate to your local climate.