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Whiteout Iberis is an evergreen perennial candytuft that delivers pure, abundant blooms across hardiness zones 3 through 9. This cultivar of Iberis sempervirens grows as a compact mound just 6 to 12 inches tall, making it exceptionally useful for edging, borders, and fresh arrangements. Native to the sensibilities of southern Europe and the Mediterranean, Whiteout thrives in full sun and reaches maturity in its second year, rewarding patient gardeners with cool-hardy performance through many North American winters.
Full Sun
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3-9
12in H x ?in W
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Moderate
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Whiteout candytuft flowers prolifically once established, delivering delicate blooms ideal for cutting and bringing indoors. Its evergreen nature means the foliage persists year-round, providing structure to the garden even in winter dormancy. The variety was bred to bloom reliably in temperate and moderate climates, making it a dependable perennial that settles in and strengthens with age rather than demanding constant fussing.
Whiteout Iberis excels as a fresh-cut flower, bringing delicate sprays of white blooms into baskets and bouquets. Gardeners rely on it for edging perennial beds, softening hard lines along borders, and creating drifts of spring color in containers. Its evergreen foliage and low stature make it equally valuable as year-round garden structure, particularly in rock gardens and alpine troughs where its compact habit shines.
No timeline data available yet for this variety.
For earliest blooming, start Whiteout iberis seeds indoors, though specific temperature and timing details are not provided in available sources.
Transplant hardened seedlings outdoors after the danger of hard frost has passed. Space 15 inches apart to accommodate the mature mound.
Cut Whiteout blooms for fresh arrangements when flowers are fully open but still firm. Harvest in the early morning for longest vase life, and recut stems at a sharp angle before placing in fresh water.
Light deadheading after the primary spring bloom encourages additional flushes of flowers through the growing season. Once established, minimal pruning is needed; simply remove any dead or damaged evergreen foliage in early spring to maintain a tidy appearance.
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“Whiteout Iberis belongs to Iberis sempervirens, a species long treasured across the Mediterranean region for its resilient, floriferous nature. This particular cultivar was developed to emphasize early and abundant flowering while maintaining the evergreen vigor that makes sempervivens so prized in cooler climates. As a non-GMO seed variety, Whiteout represents a modern selection within an ancient lineage, bringing the charm of southern European hillsides into gardens across North America.”