Classic, all-time favourite for the perennial border. Bright yellow buds open to two rows of overlapping cream white petals around a mustard-yellow disc. Flowers completely cover the compact habit of dark green foliage. Blooms appear late spring, early summer and will continue until autumn if regularly deadheaded. Plants thrive in full sun and they are powerful butterfly and pollinator attractors. Growing to about a foot and a half in height, they are perfect for container growing or near the front of borders. Easy to grow, they mix well with other perennials.