Research Highlights

Summary

Northern white-cedar is an important tree species throughout the Northeastern United States and adjacent areas of Canada, occurring in pure stands and as a minor species in mixed stands of hardwoods and other softwoods. Northern white-cedar has important commodity and noncommodity values�it is a source of niche products, such as shingles and fence posts, and it is a sacred plant for Native Americans. It also contributes to biodiversity by increasing local tree species richness and providing wildlife habitat.

Foresters however have little information about its characteristics and potential and as it is often a minor component of mixed-species stands, it is harvested opportunistically during operations aimed at more abundant species. This inattention to white-cedar silviculture has had negative effects; the species has become less dominant within mixed-species stands, and fewer of these cedar stands exist overall.

To remedy this problem, Forest Service scientists and partners conducted more than a decade of research. Their work includes a synthesis of knowledge and new studies of white-cedar regeneration, growth, mortality, site relationships, and responses to treatment. Their recommendations include retaining and releasing cedar in managed stands and establishing and protecting advance regeneration and residual trees during harvesting.

In mixed-species stands, where more abundant species are driving prescriptions, the management plan suggests an innovative microstand approach in which pockets of white-cedar are identified and managed. This new management guide has been published in English and French by the U.S. and Canadian Forest Services.

Additional Resources