Rob Sproule is co-owner of Salisbury Greenhouses, a large family-owned gardening business that has operated for more than 45 years. A member of the third generation of the Sproule family, he is the bestselling author of New Annuals for Canada, Garden Design with Colour and Edible Container Gardening for Canada. He is a gardening columnist for a variety of publications and makes regular television appearances that spread his enthusiasm for gardening. He is also a weekly columnist on CBC Radio.