As a boy Dr Terry Houston was fascinated by the natural world and has spent more than 50 years studying Australia's 2000 native bees.

He talks with Deryn and Steve about their important in our bush and  gardens and reveals some of their unusual, and to our human understanding, quirky behaviours.

Nick Bell  was born in 1936 and is one of the pioneers of the turf industry but got his foothold in the industry travelling through SWWA restocking Yates' seed stands. We talk about lawn, artificial turf and his life with well known garden presenter Neville Passmore, who has written a book on Nick's life.

In this week's podcast Deryn and Steve talk about edible and ornamental water plants, aquaponics, edible fish and ponds with Calinda Anderson from the Woodvale Fish and Lily Farm.

If you love roses you're going to enjoy our chat with Rob Melville,  a 
third generation rose grower who with partner Katie Coyle runs 
Melville's Rose and Garden, a propagation and retail nursery in the 
Perth hills.

The couple have an enduring passion for everything rosy and discuss 
with Steve and Deryn their best loved rose varieties and favourite 
salvias to team with with roses.

Rupert Phillips from the House of Honey fell in love with beekeeping at age 8 and brings a lifetime of experience to share with All The Dirt. He joined Deryn and Steve to talk about backyard bee keeping and the medicinal properties of honey.

Lynne Chapman brings her lifetime of plant knowledge and love for roses to the show. Find out about her favourite varieties, how to strike successful cuttings, and how to bring out the best in your blooms.

Tree Scientist Dr Paul Barber from Arbor Carbon about the use of technology to monitoring urban forests and vegetation.

Deryn and Steve are getting excited with the first hints of Spring and priming their gardens for the best growing season of the year.