Gamma Filbert Tree
Gamma Filbert Tree is completely resistant to Eastern Filbert Blight and is an excellent pollinizer for Jefferson and other varieties. Pollen is shed mid-season and lasts for a short duration. Nuts are medium-sized and mature just before Barcelona. Gamma should not be relied on as your only pollinizer as its flowering time is so short.
Latin Name: Corylus avellana
Site and Soil: Filberts like 1/2 day to full sun and well-drained soil.
Rootstock Description:
Pollination Requirements: Plant Gamma Filbert with 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 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