Gail Harland has been growing tomatoes in her garden for nearly twenty years. Experimenting every season, she's now grown over 60 international tomato varieties. She started writing articles for the horticultural press in 1993 and was awarded The Royal Horticultural Society's Diploma in Horticulture in 1999. Trevor Cole started working at the Central Experimental Farm in Ottawa in 1967, initially on the adaptation of native flora to cultivation. He was appointed curator of the Dominion Arboretum in 1972, and retired in 1995. Author of three gardening books and many articles, he has received awards for his writing from the Garden Writers Association of America and the North American Rock Garden Society.