This disease resistant variety from Oregon State University, Delta Filbert Tree is compact, productive, and bears delicious richly flavored large nuts. Catkins open in mid to late season. Delta is a great pollinizer for Yamhill.
Latin Name: Corylus avellana
Site and Soil: Filberts like 1/2 day to full sun and well-drained soil.
Pollination Requirements: Plant Delta Filbert with Yamhill 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: Delta Filbert is immune 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