Rock cress is a common name for several species of flowering plants in the genus Arabis. These plants are typically found in rocky or alpine environments and are known for their small, white or pink flowers that bloom in spring. Rock cress is a member of the Brassicaceae family, which also includes mustard and cabbage. These hardy plants are often used in gardens and landscapes for their ability to thrive in poor soil conditions. Rock cress can spread quickly, making it an excellent ground cover. They are also attractive to pollinators, contributing to local biodiversity.