Rojnik (Sempervivum), popularly known as the "fat hen”, and in translation from the Latin name – an everlasting plant, belongs to the basic group of rock plants. It is a perennial with leaves clustered in the form of rosettes, white flowers, yellow or purple, several on thick flower stems. Plant height 3-5 cm, flower shoots – do 15 cm. Swarms have very little living requirements, withstand a long drought, they succeed in dry soil, sandy, permeable, in a sunny position. They grow in the cracks of walls, on the rocks. They are propagated by division or by seeds. Swarms are used in gardens, and murkach, on the edges of flower beds. They are grown mainly for winter hardy, ornamental rosettes, which are light green in color, through the dark purple, to dark brown. Most often found in gardens and rocks, in sunny pine trees, on the shores of mid-forest dunes there is a common swarm (sempervivum soboliferum). Produces medium-sized rosettes, in diameter 3 cm, spherical, green, red-brown on the outside. It blooms in July and August, yellow flowers.
Sedum (Sedum), just like the swarm, used in rock gardens, slopes and flower walls, on the edges of the rebate. Sedum plants grow well in any soil, however, they like humus soil best, permeable, sandy loam. They require a sunny position. They have stems that are creased or erect, opposite or curved leaves, flat or roller-shaped, full or serrated. Small flowers, White, yellow or red, gathered in incomplete umbels. They bloom at different times – from early spring to fall. They are reproduced by division, seedlings or sowing in spring (in March – April). You can replant at any time of the year throughout the growing season, however, they are most easily adopted in April, August and September. The cuttings obtained from the shoots take root in dry sand or in the ground within a dozen or so days. Commonly known with us, overgrowing sandy meadows and hills, acute sedum (Sedum) has short leaves, cylindrical, sitting, tiny flowers, light yellow. It blooms in June and July. It creates a compact, decorative carpets, winter hardy. The white sedum is slightly less common (Sedum album), which has roller leaves. White flowers, minor, develop in July-August. An interesting variation of it is Murals, with purple-brown leaves. The Caucasian sedum is a valuable species (Green spfl -ārium) reaching up to 3 cm. Its leaves are bigger, vane, notched at the edges, rosette-shaped on the shoots. Used for grass cover. It has varieties: Schorbusser – about blood-red flowers. Album – the few whites.