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Plants for hardiness zone 1A

Gardening
in Zone 1A

Extremely long, cold winters and a short, bright summer of about two months. Gardening here is about choosing the very toughest plants and making the most of every frost-free week.

  • Winter

    Lows −60 to −55°F

    Ground frozen for most of the year

  • Summer

    Short and cool

    Long daylight, few warm days

  • Growing season

    About 2½ months

    Typical last frost Jun 10 · first frost Aug 20

  • Best time to plant

    June

    As soon as the ground thaws

your year in 1A

When to plant, and when to wait it out

  1. JanJanuary: Winter rest: wait it out
  2. FebFebruary: Winter rest: wait it out
  3. MarMarch: Winter rest: wait it out
  4. AprApril: Winter rest: wait it out
  5. MayMay: Winter rest: wait it out
  6. JunJune: Good planting time. Last frost ~Jun 10
  7. JulJuly: Growing & blooming. Peak bloom
  8. AugAugust: Growing & blooming. First frost ~Aug 20
  9. SepSeptember: Winter rest: wait it out
  10. OctOctober: Winter rest: wait it out
  11. NovNovember: Winter rest: wait it out
  12. DecDecember: Winter rest: wait it out
  • Winter rest: wait it out
  • Good planting time
  • Growing & blooming
  • You are here

It's October: the garden's resting in 1A. Plan and order now; plant once the ground thaws.

good to know

What 1A means for your plants

  1. 1

    Every frost-free week counts

    Plant the moment the ground can be worked, and choose plants that bloom quickly.

  2. 2

    Stick to Zone 1 ratings

    Only plants rated to Zone 1 come back reliably. Treat anything else as a one-season annual.

  3. 3

    Snow is your friend

    A deep snow cover insulates roots. Pile it over low shrubs and perennials in winter.

  4. 4

    Shelter from the wind

    Plant against a south-facing wall or fence for extra warmth and protection.

our picks for you

Recommended for Zone 1A

Sorted by how easily each plant handles 1A’s winters and summers.

  • Grow in pots or as seasonal color

Grow in pots or as seasonal color

Rated for warmer zones. Easy here in a container you bring in on freezing nights.

See all Grow in pots or as seasonal color

Natives for Zone 1A

Plants native to your region, chosen for your zone. Coming soon.

Read: Hardiness zones, explained