Haydn Gunningham has perfected making compost at home. On this week's podcast he tells Steve and Deryn his secrets for making a perfect batch every time and talks about his thriving vegetable patch. For in-depth written notes and a list of the carbon and nitrogen content of organic products visit the DIY section of our website.

Keeping the garden looking good in summer can be a challenge in a hot and dry climate but Steve Wood and Deryn Thorpe from All The Dirt Podcast share tips to keep your garden thriving as the temperatures soar.

Jeremy Thomas the Curator of Aboriculture at Kings Park and Bold Park talks trees with Steve and Deryn in this week's podcast. They discuss moving the giant boab from the Kimberley to Kings Park and techniques for looking after stressed trees.

Aboriginal elder Dale Tilbrook talks about traditional bush tucker, using our tasty Australian ingredients to flavour our food at home and Aboriginal spirituality.

Dr Philip Groom, author of Plant Life of Southwestern Australia, talks about the adaptations that plant have to cope with the world's most nutrient- impoverish soils, a hot dry summer, frequent fires and the animals and birds that want to eat them!

There are over 25,000 orchid species known and many more hybrids. With just a little knowledge, orchids can be surprisingly easy to grow. Join Kaye and Jay Baylis from The Orchids Society of Western Australia as they chat everything orchids with Deryn and Steve. 

Digby Growns is Kings Park's Senior Plant Breeder. Digby, leads a small team of staff and volunteers involved in the plant breeding program. This week Deryn and Steve discuss the science behind plant breeding.

Louise Clark is a horticulturist at Morris Arboretum in Philadelphia in the US, and provides advice on growing green roofs, expands on her favourite trees and gives us an insiders look at the many outstanding gardens in the Philadelphia region.