norfolk pine

Question

Starting to yellow with tips turning brown, from bottom to top. It’s an older plant in an east sunroom. Just started having problems this late winter so added a humidifier close to it but has continued to yellow. Has been in the same pot for quite a few years.

Answer 1

It is possible that humidity is indeed the problem, since this plant enjoys rainforest-like conditions. Also check the following articles to see if any of the symptoms match:

https://www.gardeningknowhow.com/houseplants/norfolk-pine/norfolk-dropping-branches.htm
https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/norfolk-island-pine-diseases
https://hort.purdue.edu/ext/norfolkislandpine.html