Sweet Woodruff

Sweet Woodruff Sweet Woodruff (Galium odoratum) is a perennial herb native to Europe and Asia, known for its sweet-scented leaves and delicate white flowers. It is a member of the Rubiaceae family, which includes coffee, quinine, and madder.

Starting Plants

Sweet Woodruff can be propagated from seeds, cuttings, or division. Seeds should be sown in the fall or early spring, as they require a period of cold stratification to germinate. Cuttings can be taken in the spring or summer, while division is best done in the spring or fall when the plant is not in active growth. Sweet Woodruff prefers well-drained, moist soil and partial to full shade.

Hardiness

Sweet Woodruff is hardy in USDA hardiness zones 4-8, making it adaptable to a range of cool to moderately warm climates. It is a long-lived perennial that can survive winter temperatures as low as -30°F (-34°C).

Plant Size

Sweet Woodruff plants can grow 6-12 inches (15-30 cm) tall and can spread up to 18 inches (45 cm) wide, forming dense mats. They have whorled, lance-shaped leaves and small, star-shaped, white flowers that appear in late spring to early summer.

Harvesting

Sweet Woodruff leaves can be harvested throughout the growing season, typically from late spring to early fall. Harvest leaves by cutting stems just above a leaf node, ensuring that there are still some leaves remaining on the plant for regrowth. Dry the leaves in a warm, well-ventilated area away from direct sunlight.

Production

Sweet Woodruff plants can produce leaves for several years with proper care and maintenance. They may need to be divided every 3-4 years to maintain vigor and prevent overcrowding.

Seed Harvesting

To harvest Sweet Woodruff seeds, allow the flowers to mature and dry on the plant. Once the seeds have turned brown, collect them by gently rubbing the flower heads between your hands. Store the seeds in an airtight container in a cool, dry place.

Common Varieties

There are no commonly recognized varieties of Sweet Woodruff, as it is not widely cultivated. However, some nurseries may offer selections with improved leaf or flower production.

Uses as Food

Sweet Woodruff leaves are used to flavor May wine, a traditional German beverage made with white wine, sweetener, and fresh Sweet Woodruff leaves. The leaves can also be used to make herbal teas and syrups. In herbal medicine, Sweet Woodruff has been used to treat digestive issues, anxiety, and insomnia. However, it should be used with caution, as it contains coumarin, which can be toxic in large doses.