Corylus colurna aka Turkish Filbert

Corylus colurna, commonly known as the Turkish hazel or Turkish filbert, is a medium-sized deciduous tree native to southeast Europe, southwest Asia, and parts of northern India. With a symmetrical and conical habit, this tree features slightly lobed broadly-ovate leaves and pendulous yellow catkins that can reach a length of 8cm. It produces nuts that are held within a deeply fringed husk. Growing at a slow rate, Corylus colurna can reach heights of up to 20m (65ft) with a width of 7m (23ft). This tree is hardy in zone 5 in the UK and blooms from April to May, with the seeds ripening from September to October. Corylus colurna is a monoecious species, meaning it has individual flowers that are either male or female, but both can be found on the same plant. Wind acts as the pollinator for this self-fertile tree.