Frost-Resistant Plants: What to Grow in March in Zone 6

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March marks the beginning of spring in Zone 6, but the risk of frost still lingers. Choosing frost-resistant plants ensures a vibrant garden even when temperatures fluctuate. This guide highlights the best plants to start in March that can withstand the lingering cold.

Understanding Zone 6 and Frost Dates

Zone 6 experiences average minimum temperatures between -10°F and 0°F. The last expected frost date typically falls between March 15 and March 31, but it can vary. Knowing your specific last frost date helps in planning your planting schedule.

Best Frost-Resistant Plants for March

Many hardy plants can be started early in March, either indoors or outdoors, once the danger of frost diminishes. These plants can tolerate cold temperatures and help you establish a lush garden.

Vegetables

  • Spinach – Cold-tolerant and fast-growing, perfect for early planting.
  • Lettuce – Hardy varieties can be sown directly outdoors or started indoors.
  • Radishes – Quick to mature and can tolerate light frosts.
  • Kale – Extremely frost-hardy and improves in flavor after a frost.

Herbs

  • Thyme – Can be started early and withstand cold weather.
  • Parsley – Hardy and can be sown directly outdoors in early spring.
  • Cilantro – Prefers cooler temperatures and can be sown in early March.

Flowers

  • Pansies – Known for their cold tolerance and vibrant colors.
  • Violas – Hardy and perfect for early spring planting.
  • Primroses – Can survive frost and add early color to gardens.

Tips for Planting in March

To ensure successful growth, consider starting seeds indoors and transplanting them outside after the last frost. Use cold frames or row covers to protect tender plants during unexpected frosts. Soil preparation with compost improves plant resilience and growth.

Conclusion

Growing frost-resistant plants in March in Zone 6 allows gardeners to enjoy an early start to the growing season. Selecting hardy vegetables, herbs, and flowers ensures a thriving garden despite the lingering cold. With proper planning and protection, your garden can flourish even in early spring.