Agriculture and forestry

Tsyhanska Olena – candidate of agricultural sciences, senior lecturer of the department of landscape management, forestry, horticulture and viniculture of Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str. 3, e-mail: lenkatsiganskaya@gmail.com).

The results of studies on the use of decorative ornamental plants of flower and ornamental plants Dahlia Cav. in Vinnytsia Region at their level of adaptation to growing conditions have been presented. The assessment of the collection of the genus Dahlia Cav. at the exposition site of the Vinnitsa National Agrarian University, it has been determined that the collection is dominated by varieties of individual garden groups such as cactus, nymphae and decorative. In order to expand and replenish the collection of the genus Dahlia Cav the exhibition area VNAU conducted a selection of varieties that are representative of a set of indicators such as plant height, shape and size of inflorescences among the dahlia assortment. Dahlias   are   easy   to  grow  and  bring life to your garden with their intense color,strength, and ability to keep flowering until the first frosts. Dahlias like well-balanced and composted soil, and full sun. With 42 different species and thousands of cultivars, dahlias offer plenty of variety. Variations in color, flower form, size, and foliage make it easy to find one you'll love. The rich variety of their flower colors shapes and sizes added to their extensive blooming season, have turned dahlias into popular addition to our landscapes. There are thousands of varieties of dahlias and they are all classified by the shape, size and color of their flowers. Flowers can be very small in diameter. They offer an impressive range of colors such as pink, purple, red, scarlet, orange, yellow, white and can be stripped or tipped with another color. They can be single-flowering (orchid-flowering, anemone and collarettes) or double flowering (cactus, semi-cactus, formal or informal decorative dahlias, ball and pompons). Dahlias have wide height range.

There are many different ways to use dahlias in the garden. Shorter dahlias mix well with annuals or shorter perennials, while taller varieties will grow well with perennials and ornamental grasses toward the rear or center of borders. Their lower stems tend to be unattractive and the plants are heavy (especially the large flowered dinnerplate types); so without staking, they tend to flop. Plant the smallest varieties in containers. Dahlia flowers are brightly colored. They can also look surprisingly good with grasses, as the contrast is total-big bright flowers against finely textured grasses. Good cutting dahlias tend to be the larger varieties because of their longer stems.

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