With summer on the horizon and everything in the garden growing like fury, there is plenty to be getting on with in the garden at the moment and Gardeners' World has some timely advice for borders, veg patches, boggy areas and even compost heaps. Plants which thrive in the moist conditions of pond margins are looking at their best right now and Toby Buckland recommends varieties which not only add a splash of colour but also have great foliage.