Seasonal Calendar for Growing Herbs in the Pacific Northwest

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Growing herbs in the Pacific Northwest can be a rewarding experience, thanks to its unique climate. Understanding the seasonal calendar helps gardeners maximize their herb yields and ensure healthy plants throughout the year.

Spring: Planting and Early Growth

Spring is an ideal time to start planting herbs that thrive in cooler weather. Typically, from March to May, you can sow seeds directly into the soil or start seedlings indoors.

  • Basil: Plant after the last frost, usually in late April or early May.
  • Parsley: Sow early in spring for a continuous harvest.
  • Cilantro: Best planted in early spring; it prefers cooler temperatures.
  • Chives: Can be planted early and will establish quickly.

Summer: Peak Growth and Harvest

Summer, from June to August, is when most herbs reach their peak growth. Regular watering and harvesting encourage bushier plants and better yields.

  • Thyme: Harvest throughout summer; drought-tolerant once established.
  • Oregano: Best harvested in mid to late summer for robust flavor.
  • Mint: Be mindful of spreading; harvest frequently to control growth.
  • Basil: Pinch back regularly to promote bushiness and prevent flowering.

Fall: Preparing for Dormancy

As temperatures drop from September to November, some herbs slow their growth. This is the time to prepare for winter by pruning and mulching.

  • Sage: Cut back in late fall to prevent winter damage.
  • Rosemary: Bring indoors or protect outdoors with mulch.
  • Parsley: Can be overwintered indoors or as a hardy outdoor herb.

Winter: Maintenance and Protection

During winter, from December to February, many herbs go dormant. Focus on protection and indoor cultivation if possible.

  • Indoor herbs: Grow basil, cilantro, and parsley on sunny windowsills.
  • Outdoor herbs: Cover with straw or mulch to insulate roots.
  • General tip: Avoid overwatering, as cold and damp conditions can promote rot.

Additional Tips for Successful Herb Gardening

To ensure a thriving herb garden in the Pacific Northwest, consider these tips:

  • Soil: Use well-draining soil enriched with organic matter.
  • Sunlight: Most herbs prefer at least 6 hours of direct sunlight daily.
  • Watering: Water deeply but infrequently to encourage deep roots.
  • Companion planting: Plant herbs together that benefit each other and deter pests.

By following this seasonal calendar and tips, gardeners can enjoy fresh herbs year-round, even in the Pacific Northwest’s varied climate.