Outsidepride Rock Cress Aubrieta Royal Seed Mix - 10000 Seeds Aubrieta royal mix is a perennial, low growing ground cover plant grown in USDA Zones 4 - 9. This mix is a sweetly scented groundcover that will attract an array of beneficial insects such as bumblebees, hummingbirds, as well as butterflies & ladybugs. This beautiful ground cover, also known as rock cress, is terrific for rock walls, hanging baskets, or other containers. It is also considered to be deer resistant. Even at full height, this blue aubrieta only grows to 4 inches tall and spreads or cascades over the edges of baskets, containers, rock walls, etc. Aubrieta royal mix is a perennial flowering ground cover which produces small blue flowers. It is aptly named for it's use in rock gardens which is why it is also called rock cress. Plant approximately 1000 seeds to cover 20 square feet in planting for a ground cover or cascading over a rock wall. Keep seeds continually moist until germination. This may mean watering several times a day.