Monty Don shows us how to plant pots of bulbs for fabulous summer colour. Rachel de Thame shares her passion for rare plants looking at a relative new comer to spring gardens, the hepatica. These delightful little flowers come in a huge range of colours and sizes and Rachel meets a collector who has travelled far and wide in search of new varieties. Back at Longmeadow, Monty is in his vegetable patch hoping that his soil is warm enough to plant the first potatoes of the year