Abstract
Rare perennials are very valuable ornamental plants that are very different in their morphological properties. They also differ in the rhythms of their seasonal development. The research goal is to make a comprehensive description of the studied introduced species according to their economically valuable characters and to recommend them for use in land-scape design of the Altai Region. This paper presents the results of long-term studies of 10 taxa that were recom-mended over the past 5 years. The research was carried outin the forest-steppe zone of the Altai Region. The following species were the research targets: Ajuga reptansChocolate Chip,Ajuga reptansMulticolor,Aster novi-belgiiBlue Gem,Aster novi-belgiiEthel Ballard,Aster novi-belgiiMarye Bal-lard,Ligulariatangutica, Heuherella tiarelloides, Sedum kamtschaticum, Hylotelephium spectabile, Eupatorium pur-pureum. In terms of height, structure of vegetative and gen-erative shoots, the introduced species belong to different morphobiological groups, and that allowsusing them in vari-ous types of plantations. The recommended taxa have a high degree of winter hardiness with the exception of Ajuga reptansMulticolor which rots slightly in winters with high snow levels. The flowering of the studied species lasts from May 26 to September 26. There are 4 cultivars with an early flowering period, 1 -middle, 5 -late flowering. Flowering duration is 19-52 days. The plant height is from 18 to 130 cm. The comprehensive evaluationreaches 12-13 score points out of possible 15points. The influence of weather conditions on the quantitative indices of ornamental and morphophysiological qualities of the cultivars was deter-mined. Wide use of highly ornamental perennials recom-mended for landscaping may increasethe ornamental valueof flower beds.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
