Conserving Rare Trees: Clarence Slockee looks at some rare and threatened plants and explains how they're being protected. The Vegie Patch - Potatoes / Seed vs Seedlings: Tino Carnevale plants spring crops including red onion, garlic and lettuce and a range of traditional and unusual potato varieties. Rusty's Garden: Jane Edmanson visits comedian and musician Rusty Berther, from The Scared Weird Little Guys, to help him prepare for the competitive marrow growing season. Caring for Succulents: Jerry Coleby-Williams gets stuck into his succulents and cacti, doing some much needed maintenance before the hot weather arrives. Old-Fashioned Roses: Colin Campbell visits a gardener who collects old fashioned roses and manages to grow them to perfection in the challenging Brisbane conditions.