The guelder rose is a popular cultivar in gardens throughout Europe and North America. Native to Europe, Viburnum opulus is a deciduous shrub with white flowers resembling snowballs and clusters of bright red berries. The plant is an important part of Slavic folklore and the bark has been utilized in traditional European herbalism for its beneficial properties for centuries. Cramp bark powder can be employed in herbal formulations, tincturing, or encapsulation.

Cramp bark is a large deciduous shrub growing as much as 15 feet (5 m) tall and 15 feet wide. It is native to the moist lowland forests of England and Scotland and naturalized to moist forests of the northern United States and southern Canada. The bark is stripped before the leaves change color in the fall, or before the buds open in the spring. A member of the honeysuckle family, cramp bark bears large white flowers, up to 5 inches (12 cm) across that yield red berries in the fall. The berries are eaten like cranberries, although moderation is recommended. Historically, the berries, once dried, have been used for making ink.

Precautions
No known precautions. We recommend that you consult with a qualified healthcare practitioner before using herbal products, particularly if you are pregnant, nursing, or on any medications.

This information has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. For educational purposes only.