I added bursts of vibrant colour to my RHS Hampton Court garden by using Achillea Millefolium, or yarrow, a spreading perennial topped with domed flowerheads of small, dark pink rose-pink flowers ...

Planting location: Choose a spot that gets at least five to six hours of sun each day. Do not plant roses under or too close ...

Whether you are looking to cozy up a garden seating area or hide an unsightly view, tall perennial flowers are the answer.