What to plant this week in Zone 1a
In Zone 1a, the long winter continues with temperatures potentially dropping to -60°F. Keep your garden structures secure and wait until mid-June for the average last frost before planning any outdoor planting.
In the ground
Sow this week
No direct sowing windows open this week.
Move out
Transplant this week
Nothing is due to go out this week.
Coming ripe
Harvest soon
No harvest windows opening just yet.
Do this now
Seasonal tips
- Inspect cold frames and hoop houses for damage from snow loads and heavy ice accumulation.
- Check on overwintering perennial roots and ensure they are free of excess moisture to prevent rot.
- Plan your spring crop calendar now, noting that the average last frost date is June 15.
- Clean up any dead plant material around structures before it freezes solid.
Keep watch
Pest & disease watch
- Monitor for mice or voles gnawing on exposed perennials and vegetable starts in late winter.
- Check greenhouse vents to ensure they are functioning correctly despite freezing conditions.
- Watch for signs of rodent damage on stored seeds or tools left outside.
Water
Watering this week
One more thing
Now is the perfect time to soak your spring seed-starting trays in lukewarm water before sowing once the frost date passes.