Originally trained at Hertfordshire College of Horticulture and Royal Botanic Gardens, Kew, Alan Titchmarsh is the author of over 40 books about gardening, including How to be a Gardener Book 1: Back to Basics , the fastest-selling of all time in the genre, and the bestselling The Kitchen Gardener: How to Grow Your Own Fruit and Veg. He writes for BBC Gardeners' World Magazine , and is gardening correspondent for the Daily Express and Sunday Express. A frequent broadcaster, Alan has covered The Chelsea Flower Show for the BBC for over 25 years, he has a seasonal daily chat show on ITV, and a weekly show