Plant Iberis sempervirens 'Snowflake' where you want a crisp, spring-bright blanket of white flowers over a neat evergreen mound. This candytuft is a classic edging and rock-garden plant, valued for its dense habit and early-season color. You will get the best flowering in full sun, but it will tolerate light shade, especially where afternoons are hot.
At maturity, expect roughly 12-16 inches in height with a spreading, groundcover-style form. Use it to soften the edge of a path, spill over a low wall, or fill a sunny pocket in a mixed border. It pairs especially well with spring bulbs and other low, sun-loving perennials, adding structure even after bloom thanks to its evergreen foliage.
Give it well-drained soil and avoid soggy spots, especially in winter. Water to establish, then let the soil dry slightly between waterings; once rooted, it handles short dry spells well. After the main bloom flush, shear or trim the plant back by about one-third to encourage fresh growth and a tighter, cleaner shape.
Hardy in USDA Zones 3-8, Iberis sempervirens 'Snowflake' is a reliable choice for low-maintenance borders, rock gardens, and containers where you want long-lasting foliage and a standout spring display.