Cascade Carpet Salal is a compact cultivar of the native Pacific Northwest shrub Gaultheria shallon, bred to stay a manageable 2 to 3 feet tall while retaining all the tough, evergreen character of its species. In spring, dainty urn-shaped white flowers appear, followed by small blue berries in summer that are mildly sweet and dry easily, making them unique among ornamental groundcovers. Hardy in zones 6 through 9, this low-growing shrub thrives in full sun and maritime climates, with the added bonus of leathery evergreen foliage that florists prize for arrangements. Its compact habit and drought tolerance once established make it an excellent choice for gardeners seeking year-round structure without constant fussing.
Full Sun
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6-9
36in H x ?in W
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Moderate
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The berry crop is genuinely edible and pleasantly mildly sweet, yet what really sets this cultivar apart is its dwarfed stature compared to wild Gaultheria shallon, which can tower to 10 feet or more. The leathery, glossy evergreen leaves are so abundant and attractive that commercial florists harvest them regularly for filler in arrangements. Add the spring flowers and the fact that established plants shrug off drought in maritime and acidic-soil gardens, and you have a shrub that works as both functional landscape plant and unexpected food producer.
Cascade Carpet Salal serves dual purposes as both ornamental groundcover and a modest berry producer. The waxy evergreen foliage is extensively used in flower arranging and floral design, prized for its texture and lasting quality as a filler in bouquets and arrangements. The small blue berries, while not a commercial crop, are edible fresh or can be left to dry on the plant for a mildly sweet snack or garnish.
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Transplant container-grown Cascade Carpet Salal in spring or fall when temperatures are mild. Space plants 24 to 36 inches apart if mass planting as a groundcover. Harden off nursery-grown plants by gradually exposing them to outdoor conditions over 7 to 10 days before final planting. Dig a hole slightly wider than the root ball, keeping the top of the root mass level with the soil surface.
Blue berries ripen in summer; they are ready to eat fresh when fully blue and slightly soft to the touch, or you can leave them on the plant to dry naturally for a sweeter, concentrated flavor. Cut small sprigs of foliage year-round for floral arranging, using sharp pruners and taking no more than one-third of the plant's growth in a single season.
Minimal pruning is needed. Remove dead or crossing branches in late winter or early spring before new growth begins. For dense foliage and a neater habit, selectively prune back shoots by one-third in early spring; this encourages branching and fuller growth. If harvesting foliage for floral arrangements, prune lightly and selectively to maintain the plant's shape.
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“Cascade Carpet Salal is a deliberately dwarfed cultivar of Gaultheria shallon, the native salal of the Pacific Northwest. The wild species has long been harvested by Indigenous peoples and early settlers for its edible berries, and its waxy evergreen foliage became a standard in the cut-flower industry, shipped worldwide as filler in bouquets. Plant breeders recognized the commercial and ornamental potential of a compact, manageable version, resulting in this cultivar, which carries the U.S. Plant Patent USPP #34,661 and is recognized by the Canadian Plant Breeder's Rights Authority (CPBRAF). By shrinking the plant down to a few feet while preserving the berry crop and glossy foliage, breeders created a variety that brings the best of wild salal into home gardens.”