USDA Hardiness Zone

Zone 2: Subarctic cold

The average annual extreme minimum falls within -50°F to -40°F. Use that limit for perennial winter survival, then add local heat, frost timing, wind, soil, and moisture.

What the number can tell you

Use Zone 2 as a winter limit

USDA Zone 2 is defined by an average annual extreme minimum temperature of -50°F to -40°F. Use it to screen perennial winter survival, then check summer heat, frost dates, soil, water, and exposure.

Good decision

Use the zone to remove trees, shrubs, and perennials that cannot survive the expected winter low.

Incomplete decision

Do not use the number alone for annual planting dates, summer heat, irrigation, soil drainage, or disease pressure.

Regional context

The same zone behaves differently across the country

Season plan

Check four conditions after winter hardiness

  1. Last spring frostSets the earliest practical timing for tender plants.
  2. Summer heat and humidityCan stress plants that survive the winter easily.
  3. Root-zone drainageWet winter soil and dry summer soil create different failures.
  4. Yard microclimatesWalls, slopes, wind, and low pockets can shift exposure inside one property.
Plant shortlist

Start with plants that include Zone 2

The plant collection uses the published hardiness statement from each profile. Confirm the exact cultivar before buying.

View Zone 2 plants