Variable-leaved sea holly is a compact, evergreen perennial that brings Mediterranean elegance to any sunny garden. Native to Morocco, this clump-forming plant reaches just 12 to 18 inches tall and 9 to 12 inches wide, making it perfect for rock gardens, borders, or containers. Its most striking feature is the glossy, dark green foliage dramatically marbled with white, paired with showy grayish-blue thistle-like flower heads that bloom from June through August. Hardy in zones 5 through 9, it thrives in poor, dry soils and actually prefers to be left undisturbed once established, rewarding low-maintenance gardeners with years of performance.
Full Sun
Moderate
5-9
18in H x 12in W
—
Low
Hover over chart points for details
The white-marbled foliage is genuinely arresting, especially in bright sunlight where the contrast becomes almost silvery. Combine that with the delicate grayish-blue flowers held in tight egg-shaped clusters, and you have a plant that catches the eye from across the garden. It's evergreen in warm climates and genuinely tough, tolerating drought, rocky shallow soils, and poor earth that would defeat many other perennials. Once established, this taprooted plant asks for almost nothing from you except the sun it loves.
Variable-leaved sea holly is grown purely as an ornamental perennial, valued for its distinctive foliage and flower architecture. The white-veined leaves and unusual blue flower heads work well in rock gardens, coastal landscapes, and drought-tolerant borders where they provide textural contrast to softer plants.
No timeline data available yet for this variety.
This taprooted plant transplants poorly and is best left undisturbed once established. If you must transplant, do so gently and early in the growing season, minimizing root disturbance.
May be grown from seed, sown directly in well-drained, gritty soil in full sun.
Pruning is not necessary for this low-maintenance plant. It naturally forms a dense clump and does not spread. Remove any dead foliage in spring if the plant has been damaged by winter cold, particularly in zones 5 and 6.
Enter your ZIP code to see a personalized growing calendar for this plant.