Corylus avellena ‘Jefferson’ Abundant crops of very large, delicious nuts with a buttery flavor. Use roasted in desserts (with chocolate!), cereal, baking, salads, the possibilities are endless with this versatile perennial crop! Late flowering, Jefferson is compatible with Eta, Felix, Theta, and more. High EFB disease resistance. Zones 5-8. 15-20’T x 15-20’W.