THE potato has been stealing the limelight for too long. While gardeners love this tender tuber, others have been vying for our attention. The sweet potato, oca, yacon and dahlias – all these bulky crops and more can provide us with a hit of carbs, whether it’s mashed, roasted or (in some cases) stir-fried and raw. But do they deliver on yield and how are they grown?
Tender loving care
The growing method for many of the tender tubers is similar to the potato: position in full sun, start crops early under glass, protect the tender shoots from spring frosts, and lift the tubers before harsh winter ones. Hailing from Central and Southern America, in this sense they have needs comparable to the potato (which itself
