Analysis of the composition of Iris × hybrida hort. collection of Nikitsky Botanical Gardens - National Scientific Center by valuable decorative and economic-biological features

Abstract

The article presents the results of the analysis of the cultivar composition of the Iris × hybrida hort. collection of Nikitsky Botanical Gardens according to bloom season and color classification. As a result of the analysis of phenological observations, the average long-term dates of the «beginning of flowering» phase in the conditions of the South Coast of Crimea were determined for all collection cultivars. The definition of the studied cultivars according to the bloom season within the garden groups into early flowering, medium flowering and late flowering has been carried out. Lists of cultivars by color classes are presented. The data obtained can be used in the practice of landscaping resort areas to create long blooming without a break compositions with the inclusion of Iris × hybrida hort. cultivars from various garden groups. The definition of Iris × hybrida hort. cultivars of NBS – NSC collection by color classes in accordance with the classification proposed by The American Iris Society was also carried out. Lists of cultivars by color classes are presented. The data obtained can be used by landscape architects to create flower arrangements in specific color spectrum in combination with companion plants.