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White Licorice Plant Harvesting:
Optimal Time and Technique

Updated: June 29, 2023

White licorice plants, also known as Glycyrrhiza glabra, are an herbaceous perennial that is widely cultivated for its medicinal properties and sweet flavor. The roots of the white licorice plant contain a compound called glycyrrhizin, which gives licorice its distinct taste and health benefits. Harvesting the white licorice plant at the right time and using the correct technique is crucial to ensure the highest quality and yield. In this article, we will explore the optimal time for harvesting white licorice plants and the best techniques to use.

Optimal Harvest Time

The optimal time for harvesting white licorice plants is typically in the fall, after the plants have reached maturity. White licorice plants usually take around three to four years to fully mature, so it is important to be patient and allow them sufficient time to develop their roots. Harvesting too early can result in smaller root size and lower glycyrrhizin content.

To determine if your white licorice plants are ready for harvesting, look for signs of maturity. The leaves should have turned yellow or brown, and the stem should have started to dry out. Gently dig around the base of the plant to assess the size and color of the roots. Mature white licorice roots are typically thick, woody, and have a pale yellow color.

Harvesting Technique

Proper technique is essential when harvesting white licorice plants to minimize damage to the roots and maximize yield. Follow these steps for a successful harvest:

  1. Prepare the soil: Ensure that the soil around the white licorice plant is loose and well-drained before harvesting. This will make it easier to dig out the roots without causing unnecessary damage.

  2. Digging: Use a garden fork or shovel to carefully dig around the base of the white licorice plant. Start digging about a foot away from the stem to avoid damaging the roots. Gently loosen the soil around the roots, but be cautious not to break or cut them.

  3. Lifting the roots: Once you have loosened the soil, gently lift the roots out of the ground. If the roots are particularly long, you may need to dig deeper to retrieve them fully. Take care not to pull or yank on the roots, as this can cause breakage.

  4. Cleaning and separating: Shake off excess dirt from the roots and remove any attached leaves or stems. Rinse the roots with water to remove any remaining soil. If you have harvested multiple white licorice plants, separate the roots by size to ensure even drying and processing.

  5. Drying: After harvesting, it is important to dry the white licorice roots properly to prevent mold or rotting. Lay the roots in a single layer on a drying rack or a clean surface in a well-ventilated area. Avoid direct sunlight, as it can cause discoloration and loss of flavor. Allow the roots to air dry for at least two weeks or until they become brittle.

  6. Storing: Once completely dry, store the white licorice roots in an airtight container in a cool, dark place. Properly stored roots can maintain their quality for up to two years.

Tips for Successful Harvesting

To ensure a successful white licorice plant harvest, consider the following tips:

  • Avoid harvesting after rainfall or during wet weather conditions as this can cause soil clumping and difficulty in digging.
  • Use sharp and clean tools to minimize damage to the roots and reduce the risk of introducing pathogens.
  • If you are only harvesting a few white licorice plants, consider cutting off small sections of the root instead of digging up the entire plant. This allows the plant to continue growing and ensures a sustainable harvest for future years.
  • Keep track of the age of your white licorice plants to ensure they have reached maturity before harvesting. Labeling or marking the plants can help with this.

Conclusion

Harvesting white licorice plants at the optimal time and using the correct technique is essential for maximizing yield and quality. By waiting until the fall when the plants have matured and carefully following the steps outlined above, you can ensure a successful harvest. Remember to dry and store the roots properly to preserve their flavor and medicinal properties. With a little patience and attention to detail, you can enjoy the sweet rewards of white licorice plant cultivation.