Deciduous, Edible fruit, Shrubs, Trees
Although usually grown for their edible nuts (see Filbert, Hazelnut), includes very attractive ornamental shrubs or small trees. The plants have separate female and male flowers. Female blossoms are inconspicuous; male ones are showy, appearing in pendent catkins on bare branches in winter or early spring. Leaves are roundish to oval, with toothed margins. Thin branches as needed in late winter; remove suckers when you see them.Hazelnut
Native to southeastern Europe. This is one of the species grown commercially for hazelnuts (also called filberts). This is a heavily suckering shrub to 12–15 ft. high and wide, but it can be trained as a small tree, as it commonly is in orchards. Needs a pollinator.
–Barcelona– is the classic variety. Productive, flavorful, as some resistence to Eastern filbert blight.
–Butler– has gone by the boards. Was used as a pollinator, but gets Eastern filbert blight.
–Casina– is from Spain. Most heavily planted hazelnut in Oregon in 1995. Mid to late pollen shedder. Cross with –Hall–s Giant–. Thin shell, perfect nuts for processing. Moderate resistance to Eastern filbert blight.
–Daviana– has a large, elongated nut, flavorful. Very susceptible to Eastern filbert blight. Not planted much any more.
–Du Chilly– is old, going by the boards. (Pronounced as it looks.)
–Ennis– is still heavily planted, though it is susceptible to Eastern filbert blight, because it is so very productive. Nuts are big and pretty, but late to mature. May not mature north of Seattle.
Filazel is a shrubby cross between Corylus cornuta and Corylus avellana. Seedling mostly; takes to to pollenate. Takes -25–, can bear in cold country.
–Hall–s Giant– is a great pollinator, compatible with everything. Has some resistence to Eastern filbert blight.
–Royal– out of favor, not much planted any more. Susceptible to Eastern filbert blight.
–Santiam– is the only blight-immune hazelnut.
Trazel (pronouced TRAYzel). Tree-form cross between Corylus colurna and Corylus avellana.
Drought-tolerant and cold-tolerant to -25– F. Good where standard hazelnuts won–t produce a crop.
Native to southeastern Europe. This is one of the species grown commercially for hazelnuts (also calle...
European native for rock gardens or naturalizing. In bulb and leaf, resembles small hyacinth, but 10-i...
To 8–15 ft. tall and wide; horizontal branching pattern gives plant a tiered look. Strongly vein...