Trevor Jack Cole is a non-fiction author specialising in gardening topics. He is based in Ottawa, Canada at Kinburn.
In 1960, he graduated in horticulture in England, following training at the Kew Gardens. He moved to Canada in 1967, continuing his career in horticulture.
Invaluable. I bought this little book and Cole's 'What Grows When' (they're both about 5" x 6" & a good 2" thick - with lots of pictures and relevant text) both for $15 + S/H about 2 years ago ... easily worth 2X or 3X more.