At Longmeadow, Monty Don is making plans for the summer, so he starts dahlias and other tender perennials into growth and sows annual climbing plants to light up his borders with colour. Frances Tophill visits The Royal Botanic Garden Edinburgh to meet an expert on the most exotic plant of the tropical border, ginger. Plus the team explore one of the most colourful perennials of the summer in the Isle of Wight, visiting a garden which is filled with daylilies.

There is a full hour of gardening from Longmeadow this week and Monty gets to grips with a new project, beefs up his borders by dividing perennials and celebrates spring flowering shrubs.Frances Tophill is growing vegetables this year on an allotment and this week she begins to prepare her plot and, if your shed is chock full of out-of-date seeds, old compost, dirty pots and rusty tools, Nick Bailey has lots of hints and tips on how to get everything shipshape for the season ahead. Adam Frost explores a tropical garden in Dorset and meets a man who is passionate about growing unusual and exotic plants from seed, we travel to Suffolk to meet a woman who collects and grows a wide range of bellflowers and Carol Klein profiles the best of the season's flowers - this week it is the camellia.