Costa Georgiadis goes behind the scenes at Ballarat's Begonia Festival, Jane Edmanson visits radio host Zan Rowe, Tino Carnevale shows how to test soil pH, and Millie Ross meets a gardener growing lots of exotic edibles.

Costa Georgiadis looks at Banksias in Canberra, Hannah Maloney visits a market garden; Millie Ross highlights low-cost gardening; Sophie Thomson tours her hothouse; Jerry Coleby-Williams discovers a project creating habitat.