Rose Mallow (Lavatera trimestris) is a fast-growing annual known for its large, silky, hibiscus-like flowers that bloom freely throughout the summer in shades of pink, rose, and white. Reaching 2 to 4 feet tall and 1 to 2 feet wide, this easy-care plant adds a cheerful splash of color to flower beds, cottage gardens, borders, and cutting gardens. Its upright stems are covered with attractive green foliage and produce an abundance of blossoms that attract bees, butterflies, and other beneficial pollinators. Rose Mallow grows best in full sun and well-drained soil, where it flourishes with minimal care and continues flowering when spent blooms are removed regularly. Hardy as an annual in most climates, it readily grows from seed and is well suited for gardeners of all experience levels. With its long bloom season, graceful appearance, and reliable performance, Lavatera trimestris is an excellent choice for adding bright, elegant color to the summer garden and creating beautiful fresh-cut floral arrangements.