red garnet yam used to grow sprouts or slips

Growing sweet potatoes from existing potatoes

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.

red garnet yams from slips growing in plant bag
Red garnet yams about a month old (when planted).

2 thoughts on “Growing sweet potatoes from existing potatoes”

  1. Here in Indiana, we usually start the potato in water in early February. I didn’t grow any this year…maybe next year. Yours look very healthy and happy!


    1. It wasn’t on the original plan this year but I did it (starting in water) a few years ago and it was wildly fun and successful. We’re in Georgia but the weather has been a bit on the cool and rainy side. I’m sure it will change soon…


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