The Edible Backyard author Kath Irvine has uprooted and hit the road in a 12 metre long house truck. In this audio interview she's got some some tips on how to revive soil ravaged by summer weather extremes, plus she'll share the story of Whanganui's St Joseph's Garden where volunteers grow organic veggies for the local food bank. Kim and Kath also discuss Gardening After a Flood.