This came to me as a small start and has grown and grown, I don't know the name or what I should do at this point, any suggestions? Please and thank you. The one stalk is about 4 ft. Tall
I believe it is a Senecio but don't know the species... then again it isn't Senecio!
Senecio cylindricus (Narrow-Leaf Chalksticks). I believe S. vitalis is a synonym.