With the arrival of mid-May it's time to get tender plants out into the garden at Longmeadow, so Monty Don plants out his dahlias as well as dividing ornamental grasses. Frances Tophill is in Anglesey, north Wales, getting tips and hints from a group of allotmenteers, Adam Frost finds design inspiration in a garden in Leicestershire, and Joe Swift and Flo Headlam travel to Darlington, Co Durham, to help transform an unpromising space into a garden to benefit people whose lives have been changed by head injuries. The programme also meets a gardener in Kent whose passion is foliage.