Tree support

There are 2 tree supports:

1. A direct force plug on
2. A tension/wedging plug on which will wedge and keep stable that way.

Both can be screwed with a M5 / 8mm (or longer) screw to the rod you can buy at any gardening / home improvement center - or even a broomstick, etc.. However - I am not sure if the screws are really needed here. It adds a bit more stability.

Both models were printed in PETG with 50% infill. 

PETG is a requirement as it is UV resistent and can cope better with the temperature. Also - consider a brighter material (nothing dark like black) as they will absorb the heat and might deform).

50% Infill is making this extremely sturdy and durable even if the tree grows. You can also get away with less infill, but be aware that it might be not sturdy enough over time then.

Note: The wedging plug didn't finish printing. However - I didn't reprint it as I used the second creation in the end, but it should work as well - depending on how you can apply the support.