Know how if you forget about a sweet potato (sometimes called yams here in the US depending on the variety) and it’s in a dark, humid spot it will start to sprout? If you give it more of that fun treatment, you can grow your own sweet potatoes from those existing potatoes.
We always start with an organic potato because we’ve heard conventionally grown tubers may have a sprout inhibitor. It’s easy to get them started in quart jars in water or we’ve seen some methods with shallow pans of dirt. Both will have you a ton of slips to work with in very short order. We had so many this year we planted 6 bags with two plants each so…we’ll see. These are garnet red yams (again, really sweet potatoes) and they should really start heavy vining growth this month.