Utah State University Extension
Hazelnuts or filberts can be useful crops for home food production or hobbyists in Utah. Several species have nuts with good flavor, with American, beaked and certain hybrid types most likely to produce consistently. Though European hazelnut with its large nuts is very common commercially, this species blossoms earlier than others and is more likely to have flowers damaged or destroyed by unseasonably cold weather. All hazelnut species benefit from being planted in frost protected areas to increase the likelihood of consistent nut production.
In Utah, hazelnuts grown for nut production are usually maintained as shrubs, with an oval or round shape that grows to 15 feet in height and width. Hazelnuts thrive in well-drained, loamy soil but grow in many soil types as long as the soil is well-drained. Nut production is best when cross pollination occurs with another variety of the same species (see Tables 1 and 2) or with other seed grown plants of the same species.
Beddes, Taun; Renquist, Steve; Kuhns, Michael R.; and Pace, Michael, "Hazelnuts in the Home Orchard" (2011). All Current Publications. Paper 769.