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Understory

Postfire Tree Regeneration Following the 2020 Labor Day Fires

Abstract

This fact sheet summarized research on tree seedling regeneration after the 2020 Labor Day Fires in Oregon. It includes information on how regeneration was influenced by fire patterns, seed source availability, and topographic and climatic factors. It also includes information for specific species, including Douglas-fir, western hemlock, Pacific silver fir, and noble fir.

For more information visit Collaborative Postfire Research and Monitoring: Supporting Oregon’s Natural and Cultural Resources Recovery Task Force.

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Download (PDF 9.36MB): https://research.fs.usda.gov/sites/default/files/2025-08/pnw-2020forestregenerationfactsheet.pdf
Last updated January 22, 2026