Willamette Hazelnut Tree
Willamette Hazelnut Tree was released in 1990 as Oregon State University’s first released cultivar in their hazelnut breeding program. Compared with the very popular Barcelona, Willamette yields 50% more marketable kernels and nuts have a thinner and more attractive shell. Willamette Hazelnut Trees are moderately resistant to Eastern Filbert Blight.
Latin Name: Corylus avellana
Site and Soil: Filberts like 1/2 day to full sun and well-drained soil.
Pollination Requirements: Plant with other hazelnut varieties such as Jefferson for cross-pollination
Hardiness: Filbert trees are hardy to minus 25º F. Flowers are hardy to approx. minus 15F.
Bearing Age: 2-3 years after planting
Size at Maturity: 8-12 ft. in height
Bloom Time: Winter and spring
Ripening Time: September
Yield: 20+ lbs.
Pests & Diseases: Gamma Filbert is to Eastern Filbert Blight. Filbert worm can damage nuts of all Filbert varieties.
USDA Zone: 5
Sunset Western Zone: 2-7
Sunset Northeast Zone: 32, 34-43