A massive oak tree grows right next to the manor house in Jabłonka. At a height of approximately 3 meters, the tree trunk branches into two main branches, which soon split into many massive branches. Some of these branches have been cut off, likely for safety reasons. Nearly half of the remaining branches are completely dry, indicating the tree's very poor health. Furthermore, the tree trunk is significantly rotten. This oak, like eight other specimens growing nearby, was designated a natural monument in 1983. Its height (according to CRFOP) is 23 meters.