The palm house's collection includes 4,500 specimens of more than 1,100 plant species and varieties. Of the 65 plant families, Cactaceae, Crassulaceae, Euphorbiaceae, Araceae, Begoniaceae, Piperaceae, Marantaceae, Orchidaceae and the Phylum Pteridophyta are most numerously represented. Eighteen species of palm trees are among the oldest plants here. A number of them are more than 130 years old and rise to a height of nearly 18 m. The Palm House is surrounded by the "Źrodliska" historical park that can boast 300-year old oak trees.