It was established in the early 19th century around the historical Kórnik Castle by its owner, Count Tytus Działyński, later enriched with new species and varieties by his heirs, his son Jan Kanty Działyński and grandson Władysław Zamoyski.
[1][2] The arboretum covers over 40 hectares (99 acres) and is famous for rich collections of rhododendrons, azaleas, magnolias, conifers, lilacs, apple trees, cherries, meadowsweets, honeysuckles, poplars, birches, and other woody species from all over the world.
The Institute of Dendrology of the Polish Academy of Sciences is located within the arboretum.
In 2010, a 3.5-kilometre long educational trail called Trees of the World was opened in the arboretum.
It enables visitors to see and obtain botanical information on 25 major species of trees found in North America, Asia and Europe.