Christmas Trees

Lynn Ketchum

Latest Resources

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OSU Horticulture Resources on Nursery, Greenhouses, and Christmas Trees

Current research, news and information about nursery, greenhouse and Christmas trees

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Comparison of noble fir progeny from US Pacific Northwest collection regions and Denmark for Christmas tree traits

Noble fir is the leading Christmas tree produced in the US Pacific Northwest (PNW). This study is based on evaluations of 24,721 trees collected from five native collection regions in Oregon and Washington plus imported seed from Denmark. Traits important for commercial Christmas tree production were evaluated and include commercial height, tree grade, value and color.

By Chal Landgren


Nitrogen Fertilizer: Where Does it Go?

Most Christmas tree growers fertilize with nitrogen (N) intending to improve tree color, growth, and ultimately value.

Where does the fertilizer go after application? How much is actually taken up by...

By Chal Landgren, Michael Bondi

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Extension Specialist—Christmas Trees
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