These little wonder plants can tolerate both heat and severe cold. While most lavender plants survive well without a great deal of fuss over the winter months, a few winter precautions help keep the plants looking their best.
Lavender is a hardy plant, however winter winds can damage the branches and foliage. You can protect your lavender either by planting your lavender in an area protected from winter winds or you can erect a windbreak around your plants in early winter.
An increased protective layer of mulch will help insulate your soil, which will protect the lavender roots from the colder winter weather.
You can apply up to 2 inches of mulch over the soil around your lavender plants. The mulch also helps regulate the temperature of your soil, which in turn helps ensure your plants will have a nice healthy start for spring.