York Filbert Hazelnut

York is an Oregon State University European hazelnut cultivar used as a pollenizer in orchard plantings. Its pollen-shed timing and resistance to eastern filbert blight make it useful in replacing older, susceptible pollenizer choices, while successful nut set still depends on cross-compatibility. ## Pollination and crop OSU Extension recommends York to replace ‘Daviana’ because it has similar pollen-shed timing and the eastern filbert blight resistance gene. The same guide marks York as a pollenizer-only variety and provides cultivar-level compatibility and bloom-timing tables; hazelnut crops fail to set when incompatibility alleles match. Use those tables to choose a compatible female parent and pollen source, rather than relying on a general claim that two hazelnut cultivars will cross. A current nursery profile identifies York as an edible European hazelnut and lists full sun, well-drained soil, and steady moisture during establishment. [OSU Extension variety and compatibility guide](https://extension.oregonstate.edu/sites/default/files/documents/em9073.pdf) · [Hornbaker Gardens’ York profile](https://shop.hornbakergardens.com/item/13561/Corylus-avellana-York-7-3-4) ## Maintenance Give the plant room for its eventual canopy and keep a compatible pollinizer nearby if nuts are desired. Water new plantings consistently, then adjust irrigation to rainfall and drainage. Follow regional OSU guidance for eastern filbert blight scouting, since resistance does not remove the need for monitoring.