Help with pruning one of my balcony pot-plants Thuja Hiba or Thujopsis dolabrata
Reminder, you are talking to an absolute beginner, never tried anything like it to grow on my balcony.
I have the following Thuja Hiba on my south facing balcony, in a pot. See pic. It is doing extremely well and growing faster than expected. Now it needs a prune. I want to keep it the round shape it is but also make sure it does not look like a bush in a theme parks, organised to the nth degree where it mimics a plastic one.
I assume spring or autumn is the best time, or can one do cuts at any time? And next how to best prune (as in where along the stem)? Open to any tips and insights about my lovely Thuja here.