Introducing RHS Gardening Masterclasses, a new YouTube series delving deep into gardening advice and techniques with RHS experts🌳 We're kicking off this week with a four-part series on trees. Tune in to our YouTube channel to discover the vital role trees play in our gardens and wider habitat with RHS Ecosystem Services Fellow Dr Elizabeth Larsen, and gain insights from Josh Corbett, Arborist at RHS Garden Bridgewater and Tobin Layton, Arboriculture Team Leader at RHS Garden Wisley on tree spec