BIOLOGICAL CHARACTERISTICS OF PARTICLES OF TREE PEONY (PAEONIA SUFFRUTICOSA ANDR). COLLECTIONS RGAU-MSHA IM. K.A. TIMIRYAZEVA
The article provides information on the results of a variety study of a collection of tree-like peonies. Varieties with early vegetation "Tamamidori", "Hanakisoi" were revealed. Late-flowering cultivars were 'Alice Harding'. The longest flowering was noted in the variety "Alice Harding". The longest growing season was found for the varieties "Tamamidori", "Hanakisoi", "Taisho-no-hokori" and "Shimadaijin" (227 days). The most winter-hardy variety was "Alice Harding" (5 points), and the least winter-hardy variety "Taiyo" (2 points). For single and group planting, placement in rock gardens and rocky gardens, it is recommended to use the Alice Harding tree peony, which is characterized by a long flowering period and high winter hardiness. In flower beds, mixborders and in a single planting, it is recommended to use the early flowering Hinakisoi variety, which has an average winter hardiness for growing in Moscow and the Moscow Region with shelter for the winter. For plantings with coniferous plants, for use in rocky gardens, stylized Chinese and Japanese gardens, it is recommended to use the medium-flowering variety “Shimadaijin” with a shelter for the winter, showing an average winter hardiness.