Pacific Madrone Research Projects
Introduction
Research is important to maintain the health and sustainability of Pacific madrone in the Pacific Northwest.
More resources and information about the importance of, and threats to, Pacific madrone
See below for more information about the projects and focus areas of our program. Contact us if you are interested in contributing or collaborating.
You can also join the Arbutus ARME to learn more about the opportunities to contribute to research as citizen scientists.
Projects
Genetics
- Using a range-wide seed collection to establish Common Gardens throughout its range
- Exploring the variation in madrone seedlings from the range-wide seed collection
Physiology
- Understanding the physiological and phenological responses of Pacific madrone to environmental factors.
- See the Science Findings Report : Rise and Shine: How Do Northwest Trees Know When Winter Is Over? (pdf)
- Science Findings, US Forest Service PNW Research Station, Issue 183, March 2016.
- See the Science Findings Report : Rise and Shine: How Do Northwest Trees Know When Winter Is Over? (pdf)
Propagation
- Identifying methods of propagating and transplanting madrone seedlings. More information about madrone propagation
Pathology
- Phytophthora
- Searching for resistance to Phytophthora cinnamomi root disease
- Investigating the variation in susceptibility to Phytophthora ramorum infection from a range-wide collection of Pacific madrone seedlings
- Surveillance for additional foliar pathogens of madrone
- Madrone leaf blight
- Screening for resistance to Phacidiopycnis washingtonensis, the cause of leaf blight
- Identifying environmental conditions that promote infection and disease expression of P. washingtonensis
Citizen Science
- Join the Arbutus ARME to learn more about the opportunities to contribute to research.
Research Outcomes
WSU Puyallup Research & Extension Center
2606 West Pioneer, Puyallup, WA, 98371-4998 USA
Last updated 9/24/2025