Our gardening advisors gather to help RHS members with their horticultural queries, including propagating peperomias and repotting aloe veras, growing cauliflowers successfully and when to plant an acer. Plus Wisley horticulturist Bernard Boardman offers seasonal tips on garden ponds and broadcaster Matthew Biggs shares insights from his new book, A Nation in Bloom. For more info and useful links see www.rhs.org.uk/podcast