Jim gets his hands dirty as he looks at how the pH of soil can affect what you can and cannot grow.
Carole and Lesley grow their own five-a-day, proving that you can grow vegetables to feed a family in a very small space. With school holidays fast approaching, Carolyn takes a look at the huge range of children's gardening tools available and has a young helper on hand to see if these toys really do mean business.
Jim also visits Lorna Picken and Stewart Cruickshank at Bourtie, Inverurie who have a very steep, sloping border, covered in black polythene held in place by random boulders. This being the only way that they feel that they can keep the garden in check.
Jim expertly deals with one of the most common Scottish gardening concerns - gardening on a slope.
George Anderson visits an inspirational school garden in Glasgow.