Spiraea ×rosalba, commonly known as Rosalba Meadowsweet, is a deciduous hybrid shrub that is a result of crossbreeding between Spiraea alba and Spiraea tomentosa. It is native to temperate regions and thrives in a variety of habitats including meadows, open woodlands, and along streams. This shrub typically grows at a moderate rate to a height and width of 4-6 feet (1.2-1.8 meters), forming a rounded, dense mound of slender, upright branches. The leaves are narrow and bluish-green, turning yellow in the fall. From late spring to mid-summer, it produces clusters of small, showy flowers that are usually pink or white, attracting butterflies and other pollinators.

Rosalba Meadowsweet is valued for its ease of maintenance and the ornamental quality of its flowers, which make it a popular choice for borders, foundation plantings, and as part of a mixed shrub border. It is also used for naturalizing in wild gardens or informal areas. This shrub prefers full sun to part shade and adapts well to a variety of soil types, including clay, loam, or sandy soils with medium drainage. It requires medium amounts of water and is relatively drought-tolerant once established. While generally pest and disease resistant, it can be susceptible to leaf spot and powdery mildew. Pruning after flowering helps maintain its shape and encourages more prolific blooming in the following season.CC BY-SA 4.0