Sweet Alyssum (Lobularia maritima) is a low-maintenance, fragrant, and fast-spreading annual (zones 5-8) or perennial (zones 9-11) that serves as an excellent ground cover, border, or container plant. It produces clusters of white, pink, or purple flowers, blooming from spring to fall. They thrive in full sun to partial shade in well-drained, moist soil, making them perfect for edging or covering slopes.