Jefferson hazelnut tree was developed at Oregon State University (OSU) in Corvallis, Oregon. It is a cross between OSU 252.146 and OSU 414.062. The cross made by Shawn A. Mehlenbacher and David C. Smith in 1993 and released in 2009. It has a high resistance to both Eastern Filbert blight and bud mite. Tree is released as a replacement to Barcelona (European variety) and it is slightly smaller than Barcelona ( 70% of Barcelona size). The nuts and kernels are similar in size to Barcelona. The following varieties are good pollinizers for Jefferson: Eta, Theta, and Felix.
Jefferson Hazelnut Tree
Jefferson hazelnut is disease resistant variety, which developed at Oregon State University. Trees are moderately vigorous and have an upright,
spreading canopy. They will be easy for growers to manage with occasional pruning. Nuts have good quality and size.
31 in stock
General Tree Height/Caliper: Most of our fruit trees (apple, peach, apricot, plum, pear, nectarine, quince, and cherry) are grafted/budded and are 4-6' tall with a caliper/diameter of about 1/4-3/4". Most have more than 5' height and 1/2" diameter. The other trees are seedlings, such as pawpaw, mulberry, persimmon, shade, berry, and flowering trees which range from 18-36" tall.
A rootstock primarily controls a tree's size and how early it bears fruit. Learn more about our specific rootstocks.