Hello @greenshiner and thank you for taking the time to read my post and comment. :)

All my ginger was originally started from organic ginger from the market -- one of the ways you know it's organic (beyond it being labeled as such) is the size is less gargantuan and it does not look "photo ready" as the non-organic stuff does.

I would gently wash the tubers and then use some, not any parts that started to shoot "eyes" and then plant the bits that were starting to shoot. I bring my containers in for the cold months. I started all mine in smaller containers that once housed stuff I bought at the nurseries and would put them in a pan and let them wick the water they needed rather than watering from the top. They also enjoy a bit of mist. Once they send out leaves I plant them in the larger containers and do sprinkle the water from the top. they seem to thrive in part sun/ part shade... all my flowers (ginger) happen under those conditions. Once they get large you can actually cut from the tubers and keep the plants growing... it's an everlong supply. I have about ten containers and I use A LOT of ginger just as a guide.

I hope this helps. :)

P.S. Those Yams are hearty and the vines are just beautiful.