We tour the gardens of five finalists for the Gardening Australia 2018 Gardener of the Year award. Costa Georgiadis solves inner-city problems in Leigh Sales' garden. Millie Ross shows how to make seeding pots from newspaper.

It's Christmas and we're excited about family time, holiday projects and getting the garden summer-ready! Costa and Millie build a cubby hideaway, Sophie pots up a succulent frame, Josh makes seed bomb bonbons.