The Norfolk Island pine (Araucaria heterophylla) is the soft, tiered “living Christmas tree” sold in garden centers every December. It is not a true pine, and with the right conditions it lives for years as a houseplant. Most problems, especially brown needles and bare lower branches, come from three things: too little light, dry air and uneven watering. This guide covers all three, plus feeding, decorating it safely for the holidays and growing it outdoors in warm climates.
Norfolk Island pine care at a glance
| Need | What to give it |
|---|---|
| Light | Bright light near an east, south or west window; a couple of hours of direct sun helps. Rotate weekly. |
| Temperature | Cool to moderate: about 55–70°F, with cooler nights |
| Humidity | Ideally around 50%; heated homes in winter can drop far lower, so use a humidifier |
| Water | When the top inch of soil is dry; drain and empty the saucer. Less in winter. |
| Soil | Fertile, porous, well-drained, slightly acidic potting mix |
| Fertilizer | Dilute houseplant fertilizer every 2–4 weeks, spring to early fall; none in winter |
| Size | Slow-growing indoors, up to about 9 feet over many years |
| Pets | Listed as non-toxic to cats, dogs and horses (NC State Extension) |
Where it comes from
Norfolk Island pine comes from Norfolk Island in the South Pacific, between New Zealand and New Caledonia. In its native habitat it can grow to about 200 feet, and in frost-free climates it is a large landscape tree. Indoors it grows slowly and makes a neat, symmetrical pot plant. Its cool, humid, bright island home explains what it needs in your living room.
Light
Give it the brightest spot you have, close to an east, west or south window. Purdue Extension notes that bright indirect light works but a couple of hours of direct sun each day keeps it looking its best. Turn the pot a quarter turn every week: it leans toward the light, and regular turning keeps the tiers even. Low light is one of the main reasons the lower branches die.
Temperature and humidity
Norfolk Island pine prefers a bright, cool room. Iowa State recommends 55–70°F, and Purdue suggests 60–70°F days with cooler nights. Keep it away from heating vents, radiators, fireplaces and cold drafts from doors.
Dry winter air is its biggest enemy. Purdue notes it does best at around 50% relative humidity, while heated homes can fall to about 15% in winter. A room humidifier is the most effective fix. A tray of wet pebbles under the pot or grouping it with other plants helps a little.
Watering
- Water thoroughly when the top inch or so of soil feels dry.
- Let the excess drain, then empty the saucer after about 15 minutes so the roots never sit in water.
- Water less in winter, when growth slows, but don’t let the root ball dry out completely.
- Remove any decorative foil from a holiday plant, or make sure water can drain through it.
Both extremes cause trouble: very dry soil browns the branch tips and kills lower branches, and soggy soil leads to root problems and needle drop.
Soil, feeding and repotting
Use a fertile, porous, well-drained potting mix that is slightly acidic, such as a peat-based mix with some sand or perlite. Feed with a dilute liquid houseplant fertilizer every 2–4 weeks from spring to early fall, and stop in winter when the plant rests. It grows slowly, so it only needs a slightly larger pot every few years, in spring.
Why are the lower branches turning brown?
| What you see | Likely cause | What to do |
|---|---|---|
| A few lower needles brown slowly over months | Normal ageing | Nothing; trim off dead branches |
| Lower branches yellow and drop | Too little light, often after months in a dim room | Move to a brighter window and rotate weekly |
| Brown, crispy branch tips | Dry air or soil that dried out | Run a humidifier; water when the top inch is dry |
| Widespread browning or needle drop | Overwatering, drought, or hot or cold drafts | Check drainage and watering, move away from vents and doors |
| Plant leans to one side | Light from one direction | Turn the pot a quarter turn each week |
| Sticky leaves or black film | Scale insects and sooty mold | Wipe or treat scale; check stems closely |
Bare lower stems rarely fill in again, so it is better to prevent branch loss than to fix it. Avoid cutting off the top to control height: it ruins the plant’s natural tiered shape.
Decorating it as a living Christmas tree
Many people decorate a Norfolk Island pine for the holidays, and Iowa State notes miniature lights, ribbons and small ornaments all work. Keep decorations light, since the branches are soft. Use LED mini lights, which stay cool, and take them off after the holidays so the plant gets full light again. Many holiday plants are sold with glitter or spray paint on the needles, which blocks light; choose an unpainted plant if you plan to keep it.
Growing Norfolk Island pine outdoors
It is hardy only in USDA zones 9–11 (frost-free coastal and subtropical areas), where it becomes a tall tree of 60–100 feet. NC State notes its height, surface roots and large cones can be a problem near homes and sidewalks, so choose the site carefully. In colder areas, potted plants can spend summer outdoors in bright shade, and come back inside before nights turn cold.
For other holiday plants, see our guides to Christmas cactus care, poinsettia care and amaryllis care.
More holiday plant guides: growing paperwhites.
Frequently asked questions
Is a Norfolk Island pine a real pine?
No. It belongs to the Araucaria family, along with the monkey puzzle tree, not to the true pines (Pinus).
How often should I water a Norfolk Island pine?
Whenever the top inch of soil is dry, rather than on a fixed schedule. In a warm, sunny room that may be weekly; in a cool room in winter, less often.
Is Norfolk Island pine safe for cats and dogs?
NC State Extension lists it as non-toxic to cats, dogs and horses. Keep ornaments and light cords out of reach of curious pets.
Sources
- Iowa State University Extension, How do I care for a Norfolk Island Pine? (light, rotation, temperature, humidity, watering, feeding, causes of branch loss, decorating).
- Purdue University, Norfolk Island Pine Needs TLC (direct sun, 60–70°F, 50% humidity, watering, causes of browning).
- NC State Extension Gardener Plant Toolbox, Araucaria heterophylla (origin, size, hardiness zones, soil, feeding, pests, toxicity, outdoor drawbacks).
