Candytuft (Iberis sempervirens) is a low-growing perennial flowering plant in the Brassicaceae family, prized for its cascading white blooms and evergreen foliage. Native to southern Europe and parts of Asia, this hardy plant thrives in rocky terrains, alpine regions, and sunny garden borders. Its compact form and profusion of flowers make it a favorite for ground cover, rock gardens, and edging, bringing brightness and charm to any landscape.
Iberis sempervirens originates from the Mediterranean region, where it naturally grows in rocky, sun-drenched habitats. The plant's common name, "Candytuft," refers to its historical association with the island of Crete, once known as "Candia." Over the years, it has become popular in ornamental gardening across Europe and North America, valued for its long-lasting blooms and ability to thrive in challenging conditions.
Candytuft is a perennial plant that forms a dense, mat-like growth up to 20-30 cm (8-12 inches) tall and spreads 30-45 cm (12-18 inches) wide. Its narrow, lance-shaped, dark green leaves remain evergreen throughout the year, providing year-round interest. In spring and early summer, the plant produces clusters of pure white flowers that blanket the foliage, creating a striking visual display. The flowers, often tinged with a subtle pink hue when they first open, attract bees and other pollinators to the garden.
Seeds: Sow seeds directly outdoors in spring or fall. For indoor sowing, start seeds 6–8 weeks before the last frost. Sow seeds 0.5 cm (1/4 inch) deep in well-draining soil.
Spacing: Space plants 20–30 cm (8–12 inches) apart to allow for their spreading growth habit.
Light: Plant in full sun for optimal blooming, though it can tolerate partial shade in hotter climates.
Fertilization: Fertilize sparingly with a balanced fertilizer in early spring to support vigorous growth and flowering.
Pruning: Deadhead spent blooms to encourage continued flowering. After flowering, trim back the plant by one-third to maintain its compact shape and encourage fresh growth.
Pests and Diseases: Generally pest-resistant, but watch for root rot in poorly drained soils.
Candytuft is widely used as an ornamental plant for its aesthetic appeal and versatility. Its low, spreading habit makes it ideal for ground cover in sunny borders, rock gardens, and slopes. It is frequently used to edge walkways and garden beds, where its cascading flowers soften hardscapes and add elegance. The plant is also suitable for container gardening, providing a long-lasting display of blooms. Beyond its decorative value, Candytuft supports pollinators by providing nectar during its flowering season.