Hi,

I present you an improved version of my previous project!

This support consists of 3 files for separate printing. 

You can see the dimensions of the plant support in the graphic below. All 3 parts together gives you 375mm support + 100mm that goes in the ground.
This plant support is modular, which means that you can simply expand it by printing the middle part multiple times (this will add 125mm to its height).
You can also print it without middle part obviously :)

All 3 parts connect through a simple 3-lock system that requires no glue!

Check out also my first generation Modular Plant Support ;)
https://www.printables.com/model/371120-modular-plant-support-plant-trellis

There you can find lots of peoples makes and their applications ;)

Print tips:
Layer height: 0,3mm
Infill: 5% for 2 piece set is enough, 15-20% for larger projects
I would also recommend enabling ironing for nice, smooth top surface! Takes little more time to print, but final effect is really worth it ;)