Norfolk Island pine trees (Araucaria heterophylla) are commonly used as those cute, little houseplant Christmas trees that you can buy around the holidays, but then the holidays end and you are left with a seasonally dated, living plant. Just because your Norfolk pine is no longer needed as a holiday plant doesn’t mean that you need to abandon it in the trash. These plants make wonderful houseplants.
First thing to keep in mind with the care of Norfolk pines is that they are not cold hardy. They are a tropical plant and cannot tolerate temperatures below 35 F. (1 C.).Water your Norfolk Island pine when the top of the soil feels dry to the touch. Fertilize your Norfolk pine with a water soluble balanced fertilizer, but you do not need to fertilize in the fall or winter. It is normal for Norfolk Island pine trees to have some browning on the bottom branches. But, if the brown branches seem to be high on the plant or if they can be found all over the tree, this is a sign that the plant is either overwatered, underwatered or is not getting enough humidity.