I have a Norfolk Island Pine. When should it come indoors. I live in Indiana Trail NC. Same question about Rosemary Tree.
I am seeking the answer to the lowest temperatures the two items above can survive outdoors.
Certified GKH Gardening Expert
Norfolk Pines will not tolerate anything below 50 degrees. They are very sensitive.
Rosemary will tolerate the cold down until it reaches close to 30 degrees. It is best to keep them inside when it reaches the 40's, though.
These two articles will help you with the care of these plants: https://www.gardeningknowhow.com/houseplants/norfolk-pine/norfolk-island-pine-care.htm