petunias and calibrachoa bloom in pots on gravel-covered soil

grey stones stone ground texture gray material gravel multicolor violet spring red arrangement blooming popular hybrid decorative fresh environment bright garden plant flower blossom calibrachoa floral bloom beautiful summer flora botany gardening purple solanaceae colorful decoration petunia hanging background leaf nature natural green pot petal ornamental color pink flowerpot tiny petunias pots gravelcovered soil covered sale flowering plants containers