It says "fully grown" after the first height is added. Not sure why the setup would be that way. One height at time every X amount of time is just the same as harvesting it at the 2nd tall block everytime then. Also, on the island where sugar cane first appeared....there are 2 sugar canes that grow full height at the first timer, so something is buggy.Hey,
to get a three block tall sugar cane the timer will need to run out 2 times.
Here’s how it works:
Once the timer on a 1 block tall sugar cane runs out only one sugar cane will be added to height meaning it’s now 2 blocks tall. The timer then resets. Once this timer runs out another sugar cane will be added to the stack making it 3 blocks tall. Now the timer will say “fully grown”.
Xavi