As the gardening year gets underway at Longmeadow, Monty is tidying up his ornamental grass border, pruning roses and planning for summer scent. Joe Swift continues his series on trees when he gives tips on how to plant a tree for future success. Rachel de Thame follows a fragrant trail and explains how even the tiniest of flowers pack a punch in the perfume stakes. And, in the first of several visits, we join the head gardener of Britain's most famous garden at Sissinghurst as he sets out his plans to restore it to its original vision.