Sprays of tiny. star-shaped flowers and foliage that cradles raindrops make Lady's Mantle a favourite in summer gardens. Robustica Lady's Mantle grows 40-50 cm tall. a bit taller than many other varieties. Growing with a clumping. rounded habit. this perennial forms fanlike. light green foliage. Masses of yellow-green blooms cover the plant in the summertime. The flowers are long-lasting as cut flowers. Easy to grow in the sun or shade and drought tolerant. once established. Robustica Lady's Mantle is a versatile garden plant. Many gardeners like to grow it as a companion plant with roses while others mass it as a ground cover.