zenithal view of a sempervivum plant forming a symmetrical circle surrounded by white gravel

background beautiful beauty blossom botanical botany cactus circle colourful colours composition decorative flora floral flower foliage freshness garden gardening gravel green greenery group growth horticultural horticulture houseplant lake leaf natural nature ornamental outdoor pattern perennes perennial plant red round sempervivum siemprevivas species succulent suculentas symmetric symmetry textured top tropical view white zhenital