Ecological basis for selecting ornamental perennials for urban landscaping

Creating flower beds of perennials in unprotected urban areas should be carried out on the basis of three fundamental criteria: ecology, aesthetics, economy. At the same time, the selection of the plant assortment involves consideration of two groups of factors: biological and anthropogenic. Based on these principles and as a result of a long introductory research in the RBS of the Russian Academy of Sciences, an assortment of promising ornamental perennials (143 species) for urban gardening was developed.