Planting in Zone 1 can be quite challenging. Plants able to withstand the tundra are rare. Native plants have already adapted to the area, so it makes sense that they’re a natural, excellent choice.
Most native plants can be grown across the zone, regardless of altitude, as long as growing conditions are similar. The short growing season limits vegetable and flowering annuals, but you can extend the growing season by starting plants indoors.
Plant hardiness Zone 5 includes the southern coastal region of Alaska, the North Central United States and portions of New England. With minimum average temperatures between -20 and -10 degrees F, this zone experiences a moderately cold winter.
Plants That Are Suitable for Zones 2 and 3
Bog rosemary (Andromeda polifolia) is a mounding groundcover that reveals narrow, bluish-green leaves and clusters of small, white or pink, bell-shaped blooms.
Iceland poppy (Papaver nudicaule) displays masses of blooms in shades of orange, yellow, rose, salmon, white, pink, cream and yellow. Each bloom appears atop a graceful, leafless stem. Iceland poppy is one of the most colorful zone 2 plants.
Siberian bugloss (Brunnera macrophylla) is a low-growing plant that produces deep green, heart-shaped leaves and small, eye-catching blooms of intense blue.