The possibilities of using some representatives of the genera Paeonia L. and Hosta Tratt. as part of landscape compositions on urban public facilities

The purpose of the presented work is a scientifically based selection of the most promising representatives of the genera Paeonia L. and Hosta Tratt. for their inclusion in the composition of flower arrangements on urban public facilities. Representatives of the genera Paeonia and Hosta from the collection fund of the Laboratory of Ornamental Plants of the Main Botanical Garden of the Russian Academy of Sciences were used as model objects. The genus Paeonia is represented by a sample of 19 cultivars with a Japanese flower shape, the genus Hosta is represented by a sample of 23 names. Comparative analysis of representatives of the genera Paeonia and Hosta and statistical processing of experimental data were carried out using standard techniques. The following standards were used: for representatives of the genus Paeonia – cultivars ‘Philomele’ and ‘Cora Stubbs’, for representatives of the genus Hosta – cultivar ‘Liberty’. The development of models of flower beds is carried out on the basis of generally accepted methods and techniques. The representatives of Paeonia and Hosta have the results of studies of their representatives on the signs that, in our opinion, are significant when using these plants on objects of urban landscape architecture. Representatives of Paeonia have five cultivars according to the complex of signs of the generative and vegetative sphere – ‘Philomele’, ‘Mrs. Wilder Bancroft’, ‘Cora Stubbs’, ‘Gay Paree’, ‘Lotus Queen’ and ‘Syurpriz’ – with priority for two cultivars ‘Cora Stubbs’ and ‘Philomele’, the most promising for use in urban landscaping. In the representatives of the genus Hosta, according to the totality of the four studied quantitative characteristics that do not have reliable statistical differences with the standard, were not revealed. But, based only on the results of the evaluation of the parameters of the leaf blade, three Hosta culrivars can be recommended for use as part of landscape compositions at urban public facilities: ‘Liberty’, ‘Frances Williams’ and ‘August Beauty’. Using representatives of the genera Paeonia and Hosta, selected based on the results of a comparative analysis of their quantitative characteristics, four compositions were designed.

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