Also known as yarrow, Summer Berries is an easy perennial cut flower to grow. The ferny foliage and large, flat flower clusters look incredible in the middle of a border and give your garden a quintessential cottage garden look. They will attract bees and butterflies aplenty to your garden from June-August while they flower. The flowers make a hearty filler in any display, plus they can be dried for use around the house in the winter months. Height 60cm (24).Rob’s Fillers – Fillers are the can can girls of the arrangement, they look impressive but they are there to support the Thriller. They also help fill out the arrangement and make it look bigger and bolder.