Norfolk Island pine (or Norfolk pine) pops up on nursery cabinets at vacation time, as it makes an attractive plant to offer and obtain. Offered primarily in small containers, it makes a candy vacation tree adorned within the spirit of the season.
This sleek, vibrant, needled evergreen brightens the winter season as an indoor ornament. Nevertheless, its magnificence lasts past the vacations, and it may be grown as an indoor houseplant year-round or open air in delicate, hotter months.
So don’t toss or doom the beautiful tree to the compost pile after the brand new yr. Add it to the houseplant jungle, or preserve it as a statuesque accent to your inside decor. In subtropical climates, Norfolk pine turns into a stately panorama specimen.
‘Araucaria heterophylla’ Plant Overview
What Is It?
Norfolk pine shouldn’t be actually a pine however a relative of the Monkey Puzzle tree native to Chile. Norfolk pine’s genus, Araucaria, stems from the Araucanian Indians of central Chile, to whom the genus is native. The species heterophylla is taken from the Greek time period that signifies “various leaves.” It has curled, needle-like juvenile leaves and extra scaly, overlapping grownup leaves.
A tree with an thrilling historical past, this pine was found on the second voyage of Captain James Prepare dinner (1772-1775) on an uninhabited island off the coast of Australia. Norfolk Island housed the large timber alongside its basalt cliffs and inside rainforests. Of their native vary, they will develop as much as 200 ft tall with trunks six ft in diameter. The tall, upright trunks regarded promising for ship masts however finally proved to be too brittle.
This tree was launched into cultivation in 1793, and at the moment, in North America, it’s the most well-liked of the genus. It’s readily offered at vacation time as a festive reside Christmas tree and as a houseplant.
This stately tree lends a lush, tropical look to the backyard or dwelling. It’s pyramidal to conical in form with symmetrical, whorled branches.
With 5 branches to a whorl, Norfolk pine spins a sleek behavior round a single, sturdy, upright trunk. Deep inexperienced needles are gentle and full alongside the stem.
This tree, a local of the South Pacific islands, thrives in subtropical climates, notably alongside the coast. On Norfolk Island, the tree grows on rocky seaside cliffs and in temperate rainforests with excessive humidity.
This species is frequent in South Florida and Hawaii. It additionally grows in Southern California and alongside the Central Coast as much as San Francisco Bay. It’s wind tolerant, can deal with coastal circumstances, and prefers tropical climates.
In the event you reside in a light local weather, you’ll be able to plant these lovely timber open air. Give them loads of area, as they will attain 80’ tall (and past). Their sleek, symmetrical branches can even require loads of room to achieve about twenty ft.
For many of us, Norfolk pines should develop indoors, no less than throughout cool months. They’re well-suited to container tradition as sluggish growers, although they are going to finally attain the ceiling as they thrive of their houseplant location.
Hold yours indoors year-round, or transfer it to a vivid backyard location as temperatures heat in spring, relying in your local weather.
In the event you’re rising your tree in a container, it ought to solely require repotting each three to 4 years. When roots turn out to be seen above the pot’s soil stage, it’s time to maneuver to a bigger container.
Go for a pot no less than one inch bigger in diameter than the present container. A good bigger pot will permit the plant to stay in its new pot longer.
Rising from Seed
These timber produce cylindrical male pollen cones and globular feminine cones. They could be grown from seed, although the offspring received’t retain the symmetrical, decorative branching tiers. Branching might be extra broadly spaced than propagation from cuttings.
To develop from seed, use soil that’s moist and peat-based. Place the seed flat on the soil medium and don’t cowl. Mist the seeds till germination. The seeds germinate shortly, normally inside 10-15 days.
How you can Develop
Rising Norfolk pine is comparatively simple so long as a couple of important cultural necessities are met. As many people have to develop it in a container for optimum circumstances, monitoring water, mild, and humidity wants are main.
Indoors, give Norfolk pine loads of mild. Place it close to a sunny window however out of direct afternoon rays. Keep away from a north-facing window, if potential, the place mild publicity is the least. Rotate the container sometimes to make sure uniform mild circumstances so the trunk received’t have to bend or curve towards the sunshine supply.
Within the panorama, it grows in full to partial solar. It advantages from safety from vivid afternoon daylight, which might burn leaves or trigger yellowing foliage. The timber can tolerate extra solar publicity if the soil stays moist. Full morning solar is greatest for a uniform, symmetrical type.
Make sure the soil has sufficient moisture and isn’t too moist or dry. It could possibly tolerate considerably drier soils however not continuously damp or overly dry.
How greatest to achieve simply the correct amount of water? Wait till the soil floor is dry to the contact. When the soil floor is dry, water totally. If in a container, permit the pot to empty. Err on the aspect of dryness between watering, however don’t permit the plant to dry out utterly. Branches will brown and drop if water fluctuates wildly and stresses the plant.
Norfolk pine requires porous, barely acidic, well-drained soils. In a container setting, Norfolk pine advantages from soil amended with a small share of sand and peat moss to extend porosity and acidity.
Temperature and Humidity
Excellent temperatures are between 55-65℉. Temperatures under 50℉ could stress the plant. The timber desire nighttime temperatures which might be ten levels cooler than daytime temperatures.
This tree likes humidity. It thrives with humidity ranges at 50%. Luckily, it’s adaptable to the dry circumstances of properties and places of work. To extend humidity indoors, mist the plant or place the container in a tray of pebbles and water. Grouping the tree with different houseplants could barely have an effect on rising humidity.
Hold the plant out of warmth and air-con drafts (winter will be particularly drying). Utilizing a humidifier or rising in a greenhouse atmosphere is perfect for tropical-loving Norfolk pine.
For this species, excessive temperatures at or above 95℉ could cause tip harm. Whereas that is principally beauty, guaranteeing that the plant has constant entry to moisture is essential in lowering the influence.
You don’t have to fertilize your tree, however it might assist to offer a diluted liquid houseplant fertilizer all through spring and summer season, particularly when rising in a container.
Fertilize as new development seems in spring, and chorus within the fall and winter as energetic rising slows. Don’t fertilize if you would like the tree to stay compact (therefore not encouraging fast development).
This low-maintenance indoor plant or backyard point of interest doesn’t require heavy pruning or cutback. Pruning doesn’t encourage new development for this species, so it must be averted until completely vital to regulate top.
Ought to it attain the ceiling and require topping, in the reduction of solely as a lot as wanted to keep up its top. Form symmetrical branches accordingly to retain a extra compact type. This pruning may fit to protect the plant in its indoor location, however once more, it’s typically not really helpful.
Branches could brown or drop if the tree experiences durations of stress. These will be minimize off. Checking water, humidity, and fertilizer ranges (extreme fertilizing, for instance) could treatment browning.
By far, the most dependable propagation methodology for the Norfolk pine is from seed. These seeds shortly germinate for a conifer species and are usually dependable growers.
Propagation by way of different strategies is difficult, although it may be tried by way of herbaceous cuttings of tender development of terminal shoots. Crops from cuttings have the identical genetic make-up as their father or mother crops, however as you’re utilizing department tissue quite than trunk tissue, chances are you’ll not have as a lot symmetry in a tree grown from a slicing. Guarantee cuttings are from gentle, terminal stems for greatest outcomes.
Propagation is sluggish from cuttings however comparatively quick from seed. Nevertheless, all timber take some time to achieve maturity, so keep in mind that a tree’s life must be measured in years, not days or months.
To propagate from seeds, you’ll first want a fairly contemporary Norfolk pine cone, ideally one harvested from the tree as soon as it’s well-aged and is beginning to open. A light-weight twist of the cone ought to take away it simply from the department it fashioned upon.
Beneath every scale of the cone, you’ll discover 1-2 pine seeds. These seeds are flat and sometimes have a “wing” connected to the higher a part of the seed coat. As seeds fall out of the cones within the wild, the wind will catch that wing and transfer the seed farther from its father or mother tree. For hand sowing, the wing shouldn’t be as important however nonetheless serves a function in guaranteeing the seed stays flat in opposition to the soil’s floor.
To plant your seeds, lay them instantly on the soil floor and don’t cowl them with soil. Hold them damp to make sure the moisture can penetrate by way of the seed coat, signaling to the younger plant inside that it’s time to germinate. Moist soil is normally sufficient to permit that moisture switch, however you may as well mist the seed on to simulate the results of humidity on a forest flooring or a light-weight rain. Guarantee it has entry to dappled daylight to germinate, which normally takes 10-15 days however can typically take as much as 30 days in nonoptimal circumstances.
With a couple of steps and early monitoring, cuttings can produce new crops. Nevertheless, it must be famous that the tissues of a department are subtly completely different than that of a Norfolk pine’s trunk. You’ll have extra lopsided or inconsistent development from a slicing than you would possibly from a seed. If symmetry in your plant is crucial, ranging from seed is greatest. Nevertheless, it’s potential to lift a Norfolk pine from a slicing after which harvest seeds from its eventual cones, treating the much less symmetrical specimen as a nursery plant.
Right here’s how greatest to take cuttings:
- Minimize a four-to-six-inch piece of stem from a wholesome department. Minimize the stem at a 45-degree angle to make sure extra water and rooting hormone protection.
- Take away the foliage from the underside ⅔ of the slicing. Hold cuttings moist till able to pot.
- Moisten the slicing and dip the decrease stem in rooting hormone, coating generously. Faucet off any extra rooting powder.
- Plant the slicing in no less than two inches of moist, well-draining potting combine. Coarse development sand, vermiculite, perlite, and peat make appropriate mixtures.
- Place the pot in a vivid, heat location, avoiding direct daylight (which might make the atmosphere too scorching).
- Water/mist as wanted, retaining the soil evenly moist because the slicing has no root system.
- The slicing is able to be repotted when it provides resistance in opposition to a mild tug. This implies roots have taken maintain.
- Plant the slicing in a pot, retaining it indoors in a vivid spot or shifting exterior if circumstances are delicate.
This plant is usually problem-free, although occasional insect infestation or root rot can happen indoors or in overly moist circumstances. Look ahead to scale, spider mites, aphids, and mushroom root rot.
Extra typically than pests or illnesses, the plant could yellow, brown, and drop branches because of water fluctuations, extreme fertilizing, intense daylight, and low-humidity environments. If the plant reveals indicators of stress, test these cultural circumstances first.
Spider mites, aphids, mealybugs, and scale could also be a problem. For out of doors rising, sometimes spray the plant with water throughout heat months when pests are most energetic to discourage and knock bugs off the stems. A easy horticultural cleaning soap can rid the plant of bugs if infestation happens.
Mushroom root rot attributable to the fungus Armillaria, or honey fungus, assaults and kills the roots of many perennial and woody crops. It typically seems as a white powdery substance on the floor stage of the bark. Typically, clusters of honey-brown mushrooms seem above the soil.
Armillaria could cause sudden demise of the plant. If this fungus is current, excavating and eradicating the plant and soil is the one management. Take away the contaminated space to maintain it from spreading to different backyard areas.
Continuously Requested Questions
Hold them year-round as houseplants and, in heat climates, as backyard specimens. Be certain that to provide loads of mild, well-drained soil, and humidity. Norfolk pine makes a placing addition to the panorama or as dwelling inside decor in any season.
In USDA hardiness zones 9-10, Norfolk pine will be planted open air. In colder climates, preserve Norfolk pine in a container and transfer it indoors throughout winter. Hold humidity up, water evenly in a well-draining pot, and steer clear of warmth vents and fireplaces to keep away from extreme drying.
This species was found on the uninhabited Norfolk Island off the coast of Australia. It prefers subtropical coastal climates however is adaptable and may tolerate drier soils as soon as established.
Norfolk Island pine is a stately, sleek evergreen with a uniquely symmetrical type and glossy, gentle needles. Its tropical aesthetic brings the backyard or houseplant assortment a lush look year-round. Hold this tree past the vacation season, or reward one at vacation time so the recipient can get pleasure from it for years to come back.
Embellish with strands of tiny lights for a festive vacation season. In case your tree is small, use it as a tabletop ornament. In a container, underplant it with white cyclamen and violas for a colourful show beneath the sleek foliage.