I planted some greater yams, Dioscorea alata lastApril. They are usually planted in April and are harvested from December- January. Harvested one last Sunday, it turned out to be 5.7 kilos.
I normally dig out a hole of roughly one cubic foot and fill it with grass clippings, coconut husk fiber, leaves and kitchen waste mixed with the dug out soil. Then I plant a decent piece of dormant yam in it. The foliage grows as a wine, and I usually plant the yam near a tree so that the wine can crawl up the tree. When the leaves start dying off in the winter it is ready for harvest.
I have not tasted an arrowroot in years. I have been asking everybody to find me some to plant in my garden, but it was only last week a girl working in the hospital brought me a few small plants a root. I have planted them all, and keep you posted of their progress.