Often called Giant Scabiosa, as it is so similar to the Pincushion flower adored by butterflies and gardeners alike. Cephalaria will form good clumps of pinnately lobbed basal leaves with tall branched stems that carry the flowers that can be as large as 6cm across. The flowers are a gorgeous soft yellow from early summer through to autumn. Give them full sun or partial shade and any aspect. Not fussy about soil type if it is moist and free draining. Cephalaria will get quite tall, 1m - 1.5m in first year ultimately reaching up to 2.5m so an ideal canditate for the rear of the border.