Control Stunt

Is it possible to control the growth rate of palm trees?

How do people get their palm trees at a particular height? Are their ways to increase or stunt their growth?

I learn’t something in biology about Phytochromes in which you can fire red light/far red light to allow/prevent growth in plants. It is also something to do with Auxins but you will have to have a bit of a google because I don’t remember any of it.

model helicopter radio controlled stunt session