The Pavlovsk park was created on the basis of natural coniferous forest enriched by planting of leaf-bearing trees and shrubs. Due to the variety of green plantations it is rich in different types of park landscapes.

During the War of 1941-1945 the park suffered tremendous damage: nearly 70,000 trees were felled by the Nazis, meadows were dug up by shell-holes and bomb-craters. After the war the Pavlovsk park was the first to be reconstructed in the Leningrad (St Petersburg) area. Nowadays its beautification is still in progress.

According to the inventory made in 1978-1983, the Pavlovsk park numbers about 361,000 trees of 54 different species (confers constitute 38%, leaf-bearing trees - 62% of the whole green massif). Among them are 16 species of fir-trees, 92,000 pine-trees, 42,800 larches, silver firs, 2 species of birch-trees, 2 species of willows, oaks, elm-trees, alder-trees, aspens, rowan-trees, bird cherry trees. The park also numbers 122,000 shrubs of 88 species, including yellow acacias, shrub willows and others.

Remarkable variety of the park landscapes with different ecological conditions results in concentration of natural animal resources in a comparatively small territory. In 1978 71 species of birds belonging to 28 families and 9 orders were registered here. In the Pavlovsk park one can see various mammals (squirrels, hares, weasels, ermines, moles, hedgehogs, red field-voles, musk-rats, red foxes, wild-boars, elks and others), amphibia (grass frogs, toads), reptiles (viviparous lizards), as well as 87 species of insects belonging to 46 families.