It might have made waves at Chelsea when it was used on a show garden, but sand as a growing medium is part of a movement towards finding alternatives that will support more climate resilient planting schemes. From public parks to housing developments, it's starting to weave its way into mainstream horticulture. But it might not be suitable for every project. Discover the learning curves from our panellists and whether they see sand as a long-term solution or one that's just for show.