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.). For many parts of the country, the Norfolk Island pine tree cannot be planted outside year round. It also needs to be kept away from cold drafts. The second thing to understand about indoor Norfolk pine care is that, being a tropical plant, they need high humidity. Another part of the care for a Norfolk Island pine plant is to make sure that the plant gets enough light. Norfolk pine trees prefer several hours of direct, bright light, such as the type of light that can be found in a south-facing window, but they will also tolerate full indirect, bright light as well.