The 'Klishkovsky' variety of hazelnut is a high-yielding and frost-resistant variety, distinguished by good resistance to diseases, including marsone. The tree is strong-growing with a large rounded crown, ensuring stable fruiting. Female flowers bloom at the beginning of May, slightly earlier than male flowers, which facilitates successful pollination and fruit formation on terminal buds of last year's growth. Nut maturation occurs at the end of August to early September, allowing for harvest during optimal periods.