The ecological problems of the urban ecosystem require a complex study to highlight the paths of evolution in a global aspect. Contemporary urban ecosystems represent ecosystems with genesis and microevolutionary processes, it includes a varied spectrum of different taxonomic groups of plant and animal organisms, which occupy certain ecological niches in the ecosystem. The research was carried out in the field during the vegetation period (may – september) of the years 2020 – 2023. The evaluation of the state of floristic diversity was carried out by the method of linear transects. In order to ensure the sustainable development of the plant component of the Balti urban ecosystem, it is proposed to plant species of trees and shrubs that prevent soil erosion, mitigate noise pollution, have the ability to absorb carbon dioxide, retain solid particles from the air, can serve as of habitats for urban fauna and can be used as bioindicators of environmental quality.