Sophie Thomson explores the world of wormwoods, Millie Ross makes some seed bombs, Tino Carnevale explains crop rotation, and Jerry Coleby-Williams makes the ultimate vertical garden - an aquaponic green wall!

Costa Georgiadis and the Gardening Australia team share their best tips and tricks to turn you from amateur to expert; show you new ways to grow; find plants in unusual places and pick plenty of home-grown produce on the way.