It took a month before the sweet potato achieved the level of rooting you see in the picture. Now that it has roots I can gently remove the rooted pieces and plant them in the garden on a cool morning or overcast day. Any sweet potato slips that don't have enough roots to plant directly out in the garden can be placed in a jar of water to give them more time to grow roots. Over the summer they will grow new tubers for our family to devour later! Trust me - they won't last long! Sweet potatoes are extremely frost sensitive so don't plant them outside until all danger of frost has past. For a companion planting I may put the sweet potatoes together with bush beans.
Do you grow sweet potatoes in your vegetable garden?