Wong told Coolings managing director Gary Carvosso that the centre had a "great range of really exotic, unusual plants and expert customer service, which no other garden centre I know does". The ethnobotanist claimed he could not have won a medal at the RHS Chelsea Flower Show without Coolings.
Wong added that the business was "incredibly unusual for a modern garden centre" for growing plants on site, having experts on hand and having such a strong environmental commitment.
He said gardeners were turning to more "unusual, exciting crops", adding: "With our diets having radically changed over the past 50 years, it is a great shame that growing your own doesn't reflect this. After all, many of these crops come from cool, damp climates very similar to the UK."
Wong advised gardeners to only grow what they like eating and to grow two or three crops well rather than growing a large quantity at a lesser standard.
- Wong will speak at Coolings in Kent on 23 March at 10.30am and 2.30pm.