Angelica, Kiwi and Chickpea are some of the plants on show at Kew gardens in their IncrEdibles exhibition, until November this year. The plant of the week this week is bread wheat more widely cultivated than any other crop, and with a greater world trade monetary value than all other cereals combined. First domesticated at least 9,000 years ago it can be seen growing in Kew's Global Kitchen Garden, on the Great Lawn opposite Kew Palace. You can taste it too in the Orangery in their Heritage tomato, torn basil and aged pecorino salad, with croutons (made using the wheat)