There is a visitor at Longmeadow this week when Rachel de Thame lends Monty a hand as he refreshes his dry garden with plants that will thrive in tricky growing conditions. Monty also visits a national collection of vines to search out the best varieties for growing outdoors. Frances Tophill travels to the heart of Wales to meet a couple who have carved out a garden 1000 feet above sea level and Joe Swift visits Chelsea gold medal winner and stonemason Martin Cook to see how he uses contemporary rock sculpture within his Buckinghamshire garden. Garden doctor Nick Bailey offers intensive care to some neglected patio pots, while Adam Frost gets to work on renovating his rose pergola and laying paths in his kitchen garden. Alan Power visits Marks Hall arboretum in Essex, spending a day with the head gardener to find out what it takes to manage a landscape populated with trees.