Need Advice on Elephant Ears

Went outside briefly to dig up two small elephant ears to transplant in another part of my yard, unfortunately, I wasn't able to get the full plant because the greenery broke off from the bulb or tubers? Which one is it? Tuber or bulb? I really want to say it's a tuber, but I honestly don't know. I've never grown Elephant Ears, from seed/tuber/bulb before. However, I know how to keep them alive and how to get them a pretty decent size....well that's what I've been told.

Since my plans didn't workout, the stems and leaves went to the compost and the bulbs went into a bucket of water. I'm going to clean the bulbs and transplant them in the other area of the yard where I eventually want to have sunflowers and a few artichoke plants all planted together. 

The design look I'm going for is something funky and colorful. Landscaping isn't my thing but, I'm up for a challenge. Not really expecting anything really bold and beautiful this year. I seriously, hopes this works out, but if it doesn't, I've learned something new along the way. 

Please leave me any comments down below with any advice about transplanting elephant ears.