Anthony Burke meets Martin Nix who's restoring an 1850s workers cottage on Sydney Harbour while dealing with a recent family tragedy.

We go foraging for proteas in Tanya's garden; we visit a compact Johannesburg garden designed by Tim Steyn and make a cement pot using a balloon.

We'll be discussing the ins and outs of postpartum depression; we dive into the challenges of chronic exposure to blue light; and we take a closer look at what leads to destructive and negative behaviours.