Mashua, along with Yacon and Oca are all edible tubers, once grown by the Inca's. We planted all three at Windmill this year, but only the Mashua survived. We fear that the other two might have been weeded out by over zealous gardeners. The Yacon has a plant that looks a similar to a Dahlia and the tubers are long and brown. The Oca plant has a lot of trefoil leaves that spread across the ground and smaller white and red tubers. The Mashua grows upwards and has leaves, a bit like a Nasturtium, but smaller and more "frilly". The flowers are small and yellowy orange, and the tubers are mainly white and quite small. The taste is like a strong radish. They can be eaten raw, but I prefer them in a stir fry as the taste mellows.
Rosie Jarrett 6.12.2021