With the season well underway, there's plenty of work to be getting on with in the garden at Longmeadow and there's plenty to enjoy too. Monty Don will be undertaking some timely tasks to make sure the garden remains beautiful and productive all summer long. Joe Swift visits a garden transported, lock, stock and barrel to Britain from Japan around a hundred years ago and Carol Klein tells us the fascinating story behind one of our most graceful cottage garden plants - astrantia.