F-26 is a drought-resistant and frost-resistant variety. The tree is strong-growing, with a spherical crown. The type of bearing is mixed, the ratio of lateral and apical buds is 20/80%. The flowering type is protandric, male flowers bloom first. The first bearing starts already on the 4th-5th year after planting. Nuts are of medium size, with a kernel yield of more than 58%. A characteristic feature is 100% fulfilment of nuts, which excludes thinning of the seedling school. Yield is stably high. Nuts ripening is late. Winter of 1994, with a decrease in air temperature to -34C and 2011−2012 with a decrease to -32C in February, carried without consequences.
3-year-old walnut seedling: adapted to the climate, ready for planting in open ground