Has been cultivated for many centuries and grows to become a large tree approx. 30 m tall. The almost round crown consists of heavy branches. The old trunk is light grey with deep, irregular vertical grooves. The imparipinnate leaves grow to a length of 20 - 30 cm and have 2 - 4 (6) opposing pairs of leaflets. The leaf segments are ovoid to oval, approx. 8 - 12 cm. After the appearance of the leaves the large male catkins (approx. 7 cm) and the smaller female flowers appear, the latter in groups of 2 or 3. The green, almost round fruit has a smooth husk that has short gland-like hairs at the beginning. The light brown nut is grooved. Very tasty. The nuts do not appear until the tree is approx. 15 years old. Has deep roots and much prefers open soil that the roots can penetrate. The tree is an important producer of wood.
Juglans regia môže dorastať do výšky 15 - 30 m v závislosti od podmienok stanovišťa a klímy.
Juglans regia rastie priemerne rastúci a môže dorastať do výšky 15 - 30 m v závislosti od podmienok stanovišťa a klímy.
Správny čas na výsadbu stromu je mimo vegetačné obdobie. V strednej Európe môže byť Juglans regia so zemným balom vysadený od polovice novembra do konca apríla, avšak závisí to veľmi od klimatických podmienok a druhu stromu.