Creating A Buzz: Costa's installing a hive of native bees in his backyard to help with pollination. Life On The Farm: Josh visits a farm in Perth's city centre that's growing flower clusters to attract a diversity of insects to keep the garden blooming. Bless The Mess: Jerry and entomologist Dr Tim Heard look at the benefits of a messy garden, which provides food and habitat to the little creatures. A Fertile Experiment: Tino uses lettuce to experiment with three liquid fertilisers: worm juice, seaweed extract and fish emulsion - to find out which is the most effective. A Grassland Haven: Jane visits a grassland at Werribee zoo to see the work being done to restore one of Australia's most bio-diverse and threatened plant and animal communities.