Frost Tolerance: Best Herbs to Grow Before Last Frost in Zone 1

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Growing herbs in Zone 1 can be a rewarding experience, especially when you select varieties that tolerate frost. Knowing which herbs can be started early before the last frost date ensures a lush, productive garden season. This article explores the best herbs to grow before the last frost in Zone 1, helping gardeners maximize their planting window.

Understanding Zone 1 and Frost Dates

Zone 1 is characterized by extremely cold temperatures, often dropping below -45°C (-49°F). The last frost date in this zone typically falls in late May or early June. However, with proper planning, many herbs can be started indoors or sown outdoors early to extend the growing season.

Herbs Suitable for Early Planting in Zone 1

  • Basil – Start indoors 4-6 weeks before the last frost.
  • Chives – Hardy and can be planted outdoors as soon as the soil is workable.
  • Mint – Very hardy; plant outdoors early or start indoors.
  • Parsley – Can be started indoors early or sown outdoors in early spring.
  • Cilantro – Prefers cool weather; sow early in spring.

Starting Herbs Indoors

Starting herbs indoors allows for an early start, especially for tender varieties like basil and cilantro. Use seed trays with quality potting soil and provide ample light. Transplant outdoors once the risk of frost has passed.

Tips for Indoor Herb Growing

  • Use grow lights to supplement natural light.
  • Maintain consistent moisture without overwatering.
  • Ensure good air circulation to prevent diseases.
  • Harden off plants gradually before transplanting outside.

Outdoor Planting Tips

For hardy herbs like chives and mint, outdoor planting can begin as soon as the soil is workable in early spring. Prepare the garden beds by loosening soil and adding compost for nutrients. Use row covers or cold frames to protect tender herbs from unexpected frosts.

Protecting Young Plants from Frost

  • Use frost blankets or row covers overnight.
  • Water plants well before a cold night to insulate roots.
  • Monitor weather forecasts and be ready to cover plants during cold snaps.

Conclusion

Growing herbs before the last frost in Zone 1 requires planning and protection but is entirely achievable. Hardy herbs like chives, mint, and parsley can be started outdoors early, while more tender herbs benefit from indoor starting. With proper techniques, gardeners can enjoy a vibrant herb garden from early spring onward.