I have a dumb cane plant (not sure if that is the correct name) that I have started rooting and along the trunk it has gotten little spiny things. I am not sure as to what has happened to it and if can be cured.
Dieffenbachia, or Dumb Cane has a "node" on the cane where each leaf was. The node contains the new growth, and where branching begins. The little bumps, shaped similarly to the "heart" of a corn kernel, will emerge as shown in the picture of this link: https://www.gardeningknowhow.com/houseplants/hpgen/propagating-houseplants-from-cane-cuttings-and-divisions.htm
Don't be alarmed, the plant is doing what it's made to do!
How do the flowers appear?
The flowers of dumb cane, or Dieffenbachia, are typically hood-shaped and not very colorful. Photos of two species can be seen at these university sites:
what is the contribution of dumb cane flower to the ambient environment?
A Dumb cane Dieffenbachia is one of the top plants for cleaning the air we breath.
Flowers form on a Dieffenbachia when the plant is in the right conditions and the right age. Many growers never see a flower.
I recently bought a Dumb Cane plant and its leaves have been turning yellow. I've been scouring all the websites and youtube and trying to do what people tell me. I have been checking the soil every day, and I don't water it until after the top two inches are dry. Heck, I bought a water meter, it's just not here yet. I am misting the leaves and wiping them down to make sure it doesn't get pests. One site said it might need more light so I was going to try a grow light. The lamp says it is full spectrum and has 3 lights that are adjustable. It also dims. My question(s). 1. Should I even use this? 2. What setting should I put it on? 20% 50% 100% or some where in between? 3. How far away from my plant should I put it? 4. How long should I leave it on for?
That will be unnecessary. They like ambient light, that it not direct. Too much light will cause yellowing, as will overwatering and underfeeding. They are heavy feeders.
Here is an article that will help you to care for them:
The leavesare turning yellow.
This could be due either to being rootbound, or perhaps some root rot from overwatering. Here is some helpful info: