How to Successfully Overwinter Your Herbs: Start in August

Herbs are a wonderful addition to any garden, providing fresh flavors for your culinary creations. However, many herbs are sensitive to cold temperatures and require proper care to survive the winter months. Starting preparations in August can give your herbs the best chance to overwinter successfully.

Understanding Your Herbs’ Hardiness

Before beginning your overwintering process, identify which herbs are hardy and which are tender. Hardy herbs like thyme, rosemary, and chives can often survive the winter outdoors with minimal protection. Tender herbs such as basil, cilantro, and dill usually need to be moved indoors or protected from frost.

Preparing Your Herbs in August

Starting in August allows you to strengthen your herbs and prepare them for winter. Focus on the following steps:

  • Gradually reduce watering to encourage root growth and dormancy.
  • Prune leggy or overgrown plants to promote healthy, bushy growth.
  • Fertilize with a balanced, low-nitrogen fertilizer to support root development.

Protecting and Overwintering Your Herbs

As temperatures begin to drop, take measures to protect your herbs. The type of protection depends on whether your herbs are hardy or tender.

For Hardy Herbs

Provide a layer of mulch, such as straw or shredded leaves, around the base of the plants to insulate roots. Consider using row covers or cold frames for added protection during harsh weather.

For Tender Herbs

Bring tender herbs indoors before the first frost. Place them in a sunny window or under grow lights. Alternatively, you can pot them up and move them to a greenhouse or garage for winter protection.

Additional Tips for Success

Here are some extra tips to ensure your herbs overwinter successfully:

  • Regularly check indoor herbs for pests and diseases.
  • Water sparingly during dormancy to prevent root rot.
  • Gradually reintroduce outdoor herbs to the environment in early spring.

Conclusion

Starting your overwintering preparations in August gives your herbs a strong foundation to survive the cold months. With proper protection and care, you can enjoy fresh herbs year-round and come spring, have healthy plants ready to thrive again.