Q.I have a year old Plumeria from cutting..it bloomed this year and has healthy disease free foliage..I want to bring it inside..
the foliage is healthy is free of disease because I use baking soda spray. Should I leave it in its 12 inch pot?

Certified GKH Gardening Expert
Yes, I would leave it in its pot. That doesn't sound too small. Give it a good spray of water to knock off any pests before bringing it in.
Plumerias are hardy to zone 9 but since it is so small, I wouldn't take any chances; plus you can have below freezing weather in zone 9 and 10, which they don't like.
https://www.gardeningknowhow.com/ornamental/flowers/plumeria/growing-plumeria-plants-indoors.htm