The history of the Memorial Park of the Heroes of the Patriotic War of 1812 begins in the middle of the 19^th century with the planting of Tilia cordata trees in memory of the wounded soldiers who were treated in the hospital at the Golenchino village. There are old linden and oak alleys that are140–150 years old there. Park vegetation was studied on an area of 6.09 hectares. More than 400 examples of 14 tree species were studied. 62% of them are classified as category 2 in terms of their vital status (weakened), 27% – category 1. The biodiversity of tree species in the park was compared with the park in the city center according to the Shannon index – 1.92 against 2.66 for the Verkhne-Nizhniy park; the uniformity of participation of the identified species by the Simpson index, respectively, 0.43 and 0.22. Somewhat reduced biodiversity and a high dominance of linden are noted in the memorial park and more uniform characteristics are shown for the central park. Five historical trees (4 oaks and 1 ash) were proposed for inclusion in the Register of Unique Trees of Ryazan.