When Is It Nesscary To Repot A Norfolk Pine Tree?

Question

I have had this tree about 4 years, I use a moisture meter to tell me when to water it. I think the tree is root bound. This tree is never outside. It is happy in front of our patio window with the south sun

Answer 1

You are in that range, now! I think that you should repot into a slightly larger container, or trim off the bottom 1/3 of root mass, and repot into the same container with fresh soil to maintain size.

https://www.gardeningknowhow.com/houseplants/norfolk-pine/norfolk-island-pine-repotting.htm

https://www.gardeningknowhow.com/houseplants/norfolk-pine/norfolk-island-pine-care.htm