Good eyes! I'm in Texas. How do you think about stem? Do you think it is still alive? I really want to save the stem, wish it can be recovered. The top three growths are starting brow/black from in the middle, I'm afraid its dying.

I see you've started another post in a different forum. I suggest you just add House Plants to this post. I've never owned one of these so I think that's the best forum for your question. The correct name is Dracaena fragrans and that's the name to use when you Google. The bottom of the stems is clearly rotten and dead but you could probably cut it off up to a point where it's still ok and propagate from that.

Yes. I know what you mean when you meantioned me the "house plant" forum section, I meanted to be added there, but haven't figure how to do it yet...Yes, Dracaena is sounds more formal name. I've been watching youtube, but when watching and look at the real plant here, hard for me to diagnosis if the stem is dead, need cut top of three then through the stem away, or stem can be saved. Thank you for helping me

Yes, they they’re fairly easy to propagate. Follow Floral’s advice & remove the lower leaves &root either in water ( change water every so often ) or root in a potting mix. I recently did that with my leggy ”umbrella” plant, very easy.

Personally, I wouldn't bother with a plant that far gone. Unless you grow a lot of houseplants and have extra time on your hands. 🤔 These are sold everywhere inexpensively so why not just start with something fresh - and healthy - to begin with?

Guess I have a lot of time on hands, lol, yes, they’re inexpensive & available just about everywhere but personally, I just like to propagate plants. I have more than a dozen “houseplants” inside my home & lots more outside ( I live in a very mild climate , So Cal beach ). Thinking about it, maybe I should take up another hobby :).

Ahh, but the OP is unfamiliar with houseplants and admits to having no green thumb. It can be very disappointing to invest a lot of time and effort into something that is unlikely to make a good recovery.

I dislike half dead plants in my house. Just saying........

No argument here, I was just speaking for myself.

You both had a point. I would like to put time to save it, one is because of got from coworker, at least wants give a try instead throw away. Second, also think is good opptunities to learn how to grow/take care of it. If I buy new one it could end up fail too, so why not learn from exist one?! Yes, no argument. Just want to learn difference opions. 😊 Thank you all!! @gardengal, thank you for always helping me.

It was probably overwatered which causes root rot. These are otherwise very hardy.

I just Googled it and you can't stick the trunk in soil with no roots. Take the green stalks as cuttings and stick them in water a couple of months till they have some roots and then transplant into soil.

Let the top few inches of soil dry out before watering and don't let the pot sit in water in the tray.

You can root these from stem cuttings. 6 - 8 inch sections of trunk will produce roots. But, personally, I'd use the top shoots. This plant could produce multiple new plants.