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Achilleas are in vogue again thanks in part to the many different colours and cultivars that have become available in recent years. This is one of the biggest with flat plate-like heads of deep yellow flowers held high on tall stems with ferny foliage beneath. This Achillea is long-lasting and drought-tolerant but needs a lot of space to spread out. Try it in a sunny spot at the back of a herbaceous border or among grasses but be sure to stake it as it tends to flop over in wet weather. It makes an excellent cut flower.

• Garden care: Achilleas do not like wet soil. Stake using bamboo canes or brushwood before the flowers appear. Cut down to the ground in late winter. Lift and divide large clumps in late autumn or early spring.