How to Prune Woody Herbs

Ornamental herb with dark pink flowers next to gloves, pruning sheers and outside scissors

The Spruce / Jayme Burrows

Project Overview
  • Working Time: 1 - 2 hrs
  • Total Time: 1 - 2 hrs
  • Skill Level: Beginner

Tender annual herbs, including basil and dill, usually don't need to be pruned. Just harvest them as needed. But perennial herbs—such as lavender, oregano, sage, thyme, and rosemary—often develop woody stems and need some seasonal maintenance pruning. When left to their own devices and with proper growing conditions, perennial herbs can become shrubs or carpets of ground cover. They also can grow leggy (or overly stretched) and eventually flop over. Judicious pruning can improve the look and vigor of your herbs while keeping their size and shape in check. Most importantly, pruning spurs tender, new growth that enhances the herb's flavor.


Learn How to Quickly and Easily Prune Woody Herbs

What You'll Need

Equipment / Tools

  • Pruning shears
  • Gardening gloves
  • Kitchen scissors


  • Mature herbs


Pruning Culinary Herbs

Most perennial herbs used for culinary purposes (as opposed to those grown for ornamental pleasure) can be pruned by simply removing dead growth and then properly harvesting the new growth throughout the growing season.

  1. Remove Dead Stems

    In the spring, wait until you see signs of new green growth on your herb plant. Then, remove dead or broken stems and spent flowers with pruning shears.

  2. Cut Back Soft, Woody Herbs

    Cut back herbs such as germander, marjoram, oregano, and winter savory by 1/2 in the spring to get rid of old foliage that was not harvested in the prior year.

  3. Prune the Leaves

    During the height of harvest season, regularly prune the leaves from the top of the plant by pinching them off with your fingers or using kitchen scissors. Vigorous growers might need regular harvesting every few days in the middle of the summer.

  4. Harvest 1 to 2 Inches of the Plant's Stem

    Also during the height of harvest season, harvest 1 to 2 inches of the plant's stem to allow it to grow two separate branches. This helps to create more foliage and train its shape.

  5. Deadhead Your Herb Plant

    In late summer, deadhead your herb plant by pinching off old flowers and cutting back spent or shriveled growth. Do so long before cold fall temperatures set in and plant dormancy begins.

Pruning Ornamental Herbs

Herbs often grown for ornamental purposes, such as lavender plants, need special treatment to keep their appeal. You don't want to lop them off across the top, or you will get an unnatural look. Instead, follow specific pruning methods to keep them fragrant and attractive, as well as to help them survive winter conditions.

  1. Pinch New Growth

    Regularly pinch off some of the new growth on any young plant to force it to establish a strong root system and throw out more branches.

    Ornamental herb with dark pink flowers pinching new growth

    The Spruce / Jayme Burrows

  2. Cut the Shoots

    After the first flowers show, cut the shoots 2 to 3 inches up from the woody base and just underneath the flowers.

    Ornamental herb shoots cut off with scissors

    The Spruce / Jayme Burrows

  3. Cut Back the Herbs to the First Set of Leaves

    Prune everblooming varieties throughout the summer by cutting them back to the first set of leaves. Dry the leaves of fragrant herbs to make body products, or use them in culinary dishes.

    Lavender ornamental herb leaves pruned with hand-held shears

    The Spruce / Jayme Burrows

  4. Shape the Plant

    After the blooms have faded, shape the plant by pruning it into a mound. Doing so each year will yield a large, ornamental addition to your perennial garden.

    Ornamental herb pruned off top with hand-held shears to shape

    The Spruce / Jayme Burrows

Discontinue pruning efforts in late August, as cutting the plant after this time can weaken it enough that it won't survive the winter.

Pruning Tips

Harvesting herbs can be done anytime during the growing season. But the act of pinching off tender new growth is much different from actually pruning the plant.

Pruning, or cutting back old growth, is best in the early spring once new growth starts to form at the base of the plant. A second pruning can occur just after your herb flowers by removing the deadheads and dry, brittle growth. This type of mid-season pruning increases the plant's vigor, as it diverts its energy into growing fresh leaves and expanding its root system.

Even if your woody herbs don't look like they need trimming in the spring, still cut back the stems to the new growth. But don't remove more than the top 1/3 of each stem.

Larger herbs, such as rosemary, sage, and thyme, don’t require much additional pruning during the growing season unless they’ve become leggy or overgrown. If that's the case, shape them by pruning back the plant by up to 1/3 of its height. With proper annual pruning, your plant should display more green growth and flowers and have less of a woody "trunk."

Don’t prune too late in the season. Encouraging new growth at this time will thwart the plant's effort to transition into winter dormancy. Also, frost can kill tender new leaves, resulting in a stressed and weakened plant.

Article Sources
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  1. Basic Principles of Pruning Woody Plants. University of Georgia Extension