This sheltered valley garden, surrounding an Elizabethan manor house on the Isle of Wight’s east coast, is a firework of colour. Look out for sub-tropical plants such as tulip and mulberry trees, and a little olive grove. You’ll find exotic-looking red spider flowers and fragrant five-foot ginger lilies interspersed with feathery African grasses. The stars of the show are Mottistone’s double herbaceous borders, packed with African daisies in pale pinks, purples and creams leading to vibrant reds, oranges and blues.