Norfolk Island pine—here's how to keep this evergreen Christmas tree thriving indoors

Norfolk Island pine (Araucaria heterophylla) is also known as house pine. This plant can be somewhat challenging to grow because it needs a cool, bright spot in winter. Even then, it may still partially turn brown over the colder months.

Caring for Norfolk Island pine: the right temperature and humidity

In centrally heated homes where the temperature exceeds 20 °C (68 °F), the humidity drops too low in winter for a Norfolk Island pine to thrive. Aim for around 50 percent humidity or higher. It’s easier to achieve in cooler conditions, as cold air holds less moisture—and releases it more effectively.

Between 10 and 15 °C (50–59 °F) is the ideal winter temperature for a Norfolk Island pine, but the plant may do just fine as long as it doesn’t exceed 20 °C (68 °F).

If your Norfolk Island pine remains at normal room temperature during winter, mist it daily and keep it far from radiators.

Where to place your Norfolk Island pine

In winter, the greatest challenge for a Norfolk Island pine is the lack of light. If it stays at room temperature, providing extra light is essential.

Otherwise, a Norfolk Island pine does well in a bright spot, protected from direct sunlight for most of the day, whether it’s on a windowsill or the floor.

Watering Norfolk Island pine

From spring to fall, allow the top layer of soil to dry out between waterings. In winter, if it’s kept cool, let the entire potting mix dry slightly before watering again.

If you provide supplementary light in winter and keep your Norfolk Island pine at room temperature, water it as you would during other seasons.

Caring for Norfolk Island pine in summer

During the summer, you can move your Norfolk Island pine outdoors, as long as it’s not exposed to direct sunlight.