Howea forsteriana
SPECIMEN · FROM THE LIBRARY
Howea forsteriana

Howea Forsteriana

Photo · (c) tanetahi, some rights reserved (CC BY) COURTESY INATURALIST
ON THIS PLANT

Howea forsteriana, commonly known as the Kentia Palm or Thatch Palm, is a popular indoor plant native to Lord Howe Island in the South Pacific. Belonging to the Arecaceae family, it can grow up to 10 meters tall in its natural habitat. However, when cultivated indoors as a houseplant, it typically reaches a height of 1 to 2 meters.

The Kentia Palm has long, slender green leaves that grow upward from its trunk. These pinnate leaves can extend up to 3 meters in length. The trunk itself is slender, with a diameter of around 15 to 20 centimeters.

This plant thrives in bright but indirect light and requires well-draining soil. It should be watered regularly during the growing season, but less frequently in the winter months when it goes dormant.

The Kentia Palm also has air-purifying qualities, making it an excellent choice for indoor spaces such as offices or homes where air quality may be compromised by pollutants like formaldehyde or benzene.

Overall, Howea forsteriana is an attractive houseplant that requires minimal care, making it ideal for those who want to add greenery indoors without too much effort.

A note from PlantMom

The Kentia palm shows strong resistance to disease and is typically not prone to illnesses. Still, if it is kept in a poor environment it can become more vulnerable to disease. It also encounters relatively few insect pests. Its care needs are moderate. It needs ample sunlight; if light is insufficient it can become more susceptible to disease and produce thin, spindly growth. Because it is often grown indoors, it may need to be moved periodically to a brighter spot. It does not require frequent watering. Overall, the Kentia palm is suitable for most people, though it is best for those who can provide good light conditions.

— PlantMom
CARE GUIDE

How to keep Howea Forsteriana.

Light

Kentia palm prefers substantial sunlight for optimal growth but can tolerate situations with somewhat reduced sun exposure. Native to areas with plentiful natural light, the kentia palm flourishes in bright conditions. Too little light can hinder its growth, while too much may scorch the leaves.

Water

The Kentia palm, which originates from Lord Howe Island, thrives in consistently moist soil. Once established, it can tolerate moderate drought. It's best to water the Kentia palm every 1-2 weeks, letting the topsoil dry out slightly between waterings. This palm also benefits from higher humidity, which can be achieved through misting or using a pebble tray. This is especially important during the winter months.

Humidity

This plant will thrive in moderate humidity, which is probably the level in your home. However, misting it a few times a week can be very beneficial. Make sure the room has good ventilation.

Temperature

The kentia palm grows best in warm conditions, ideally in the range of 68 to 105 ℉ (20 to 41 ℃). In its native habitat it needs consistently warm temperatures. During cooler seasons a slight drop in temperature can be tolerated, but care must be taken not to expose it to temperatures below 50 ℉ (10 ℃).

Fertilizer

Fertilize your Kentia palm in early spring to encourage healthy growth. Regular feeding improves overall vigor, producing strong growth, better tolerance of adverse conditions, and increased resistance to pests and diseases. Follow a consistent fertilization schedule for your Kentia palm to keep its foliage vibrant with deep color and a lush appearance.

Pruning

To maintain a healthy Kentia palm, it's important to prune it in early spring, focusing on removing any dead or damaged fronds. Be sure to use clean tools for this task. Avoid cutting any green fronds, as they are vital for the plant’s health. Regularly inspect the palm for pests, since pruning not only enhances the plant's appearance but also stimulates growth and helps prevent diseases. For more detailed techniques and timing, consult reputable gardening resources.

Pot & Repot

When repotting a Kentia palm, choose a pot that is just a bit larger and provides excellent drainage. Use a potting mix that drains well. Repot during spring, taking care not to injure the roots while doing so. Place the palm at the same depth it was in the previous pot. Water thoroughly after repotting, and keep it in a warm spot with bright, indirect light. Avoid overwatering to prevent root rot.

Toxicity

Kentia palms are totally non-harmful, making them a safe houseplant to have around people and pets.

Further reading →

The toxicity and danger assessments provided are for reference only. We do not assure their accuracy, so it's crucial not to depend on them. Seek professional advice when necessary for accurate guidance.

CHARACTERISTICS

Botanical profile.

Plant Type
Palm
Life Cycle
Perennial
Genus
Howea
Family
Arecaceae
Hardiness Zone
10-13
Mature Height
10.06 m
Mature Spread
6.1 m
Leaf Color
Green
Leaf Type
Evergreen
Flower Color
White
Flower Size
2.54 cm
Bloom Time
All year round
Planting Time
Autumn, Winter
Harvest Time
All year round
Native Area
Australia
ALSO KNOWN AS

Other names.

en Kentia palm en Sentrypalm en Thatch palm en Forster sentry palm en Paradise palm en Thatch-leaf palm en Flat-leaf palm en Forster's palm en Areca palm
FREQUENTLY ASKED

Reader questions.

How should I water my Kentia palm tree?

To properly water your Kentia palm indoors, you should water the top layer of soil in the container with rainwater or distilled water at room temperature. To check if it needs water, stick your finger in the soil and if the first few inches are dry, add enough water to moisten those layers and let excess water drain out of the container. Remember, it's better to underwater than overwater the palm as overwatering can cause root rot. When growing the Kentia palm outdoors, rainfall may be enough but if you get less than one rainfall per week during the growing season, you will need to provide supplemental water. Rainwater or distilled water is best for both indoor and outdoor growth.

Why should I fertilize my Kentia palm?

If you own a Kentia palm, regular fertilization is essential for its overall health. By providing the proper nutrients, you can encourage vigorous growth and enhance its ability to withstand challenging conditions, as well as resist diseases and pests. Since the attractive foliage of the Kentia palm is a highlight, it's important to maintain it by following a consistent fertilization schedule tailored to your plant. This will result in vibrant leaves with a rich color and a lush appearance.

What are the sunlight requirements for Kentia palm?

Kentia palm prefers substantial exposure to the sun for optimal growth but manages well under less sunlight. It originates from environments with abundant natural light and performs best in bright light conditions. The plant requires more than 6 hours of sunlight for full sun and about 3-6 hours for partial sun. Insufficient sunlight could stunt the palm's growth, whereas excess sunlight may burn its leaves. It's crucial to find spots in your garden that offer the right balance of light and shade, observing how sunlight moves through the area over the day to ensure the plants' well-being.

What temperature is best for a Kentia palm?

To help your tropical plants thrive, it's best to maintain a temperature range of 75℉ to 90℉ (25-32℃). While different species can tolerate temperatures outside this range, sticking within a few degrees of these limits will ensure optimal growth. However, there are extreme temperature limits to be aware of. Anything below 50℉ (10℃) or above 95℉ (35℃) can hinder growth and cause issues with the leaves and stems. Low temperatures are particularly damaging, as even a light frost can lead to the death of your tropical plants. In fact, cellular death can occur rapidly, with some species dying within 12 to 24 hours.

What should I do if I give the Kentia palm plant too much or too little water?

Here are some signs that indicate plants are not getting enough water: brown tips on the plant, wilted and drooping leaves that appear lifeless, and the potential for leaves to turn brown, crispy, and dry out severely. If you notice these signs, water the plant as soon as possible. Alternatively, overwatering can lead to root rot. If this occurs, remove any damaged roots from the soil, especially if they are mushy, fragile, and black. It is important to remove a larger part of the root to address the issue. Overwatering can also cause leaves to turn brown and fall off early. To help the plant recover, drain excess water and wait for the soil to dry before watering again. If you notice signs of root rot, discard the soil in the pot. Clean everything thoroughly and place pebbles in the pot to improve drainage. If you observe tan rings or reddish-brown spots on the leaves, discard any excess water at the base of the pot. Additionally, ensure the plant is in a well-ventilated location to promote faster soil drying and prevent future rotting.

When should I fertilize my Kentia palm tree?

To keep your Kentia palm healthy and promote growth, it is recommended to fertilize it in late winter or early spring. This provides the necessary nutrients for healthy growth as the weather warms up. In warm climate regions, it can be beneficial to add a second round of fertilizer in early fall. This not only provides extra nutrients for the following growing season but also helps the palm withstand winter cold without damaging its foliage. Fertilizing earlier allows new branches to grow and become more resilient to the cold winter.

How can artificial lighting assist in the growth of indoor Kentia palms?

Indoor Kentia palms need adequate lighting for optimal growth, especially in conditions where natural sunlight is limited, such as during winter or in less sunny spaces. Artificial lighting, such as LED lights, is beneficial as it can be customized to provide specific wavelengths needed by plants. For full sun plants, 30-50W/sq ft of light is recommended, 20-30W/sq ft for partial sun plants, and 10-20W/sq ft for full shade plants. The light source should be placed 12-36 inches above the plant, simulating natural sunlight, and kept on for 8-12 hours a day to mimic the length of natural daylight hours, aiding in faster and healthier growth.

Does the Kentia palm need different temperatures at different stages of growth?

The Kentia palm does not need temperature changes to go through different growth phases, but it is important to maintain consistent temperatures. Fluctuations in temperature can slow down its growth, so it is best to keep it in a controlled environment. The optimal temperature range for this plant is between 75℉ and 90℉ (25-32℃), and it is crucial to stay above the lower limit. Going above 90℉(32℃) is not ideal, but it won't harm the plant too much since it is a tropical species. On the other hand, temperatures below 50℉ (10℃), especially 40℉/5℃, will start to directly damage this plant, which loves heat.

What do I do if I give my Kentia palm too much water or too little water?

When watering the Kentia palm, the main issue to watch out for is overwatering, which can be identified by several key signs. If the palm receives too much water, its leaves will turn brown and droopy. The stems may also become mushy and emit a bad smell. Overwatering can lead to root rot, which can be fatal if not addressed. To resolve the problem, you can try reducing the amount of water you give the palm or adding sand to the container for better drainage. In more severe cases, you may need to take the palm out of its container, remove any rotten roots, and repot it in a new container. If you grow the palm outdoors and notice consistent overwatering, it may be due to poor soil drainage. In this case, consider moving the palm to a different location with looser soil. On the other hand, if the palm is not receiving enough water, its leaves will droop, but they are more likely to turn yellow than brown. Additionally, the palm will have slower growth. If you notice these signs, increase the frequency of watering.

When is it not a good idea to give fertilizer to my Kentia palm?

There are specific times of the year when you should avoid fertilizing your Kentia palm. The first time is during the early and mid-winter months when the palm is dormant and does not need any nutrients. It is also not recommended to fertilize the plant during the late spring and all of the summer. During this period, the weather is usually hotter and drier, which can negatively affect the palm if it is fertilized. To prevent any problems, it is best to stick to a fertilization schedule that only involves feeding the plant in early spring and early fall.

What symptoms indicate insufficient light for a Kentia palm?

Symptoms of light deficiency in Kentia palm include smaller new leaves, leggy or sparse growth with longer spaces between leaves or stems, faster leaf drop, slower or halted growth, lighter-colored new leaves, and conditions such as chlorosis (leaves losing green color), sunscald (damage from intense exposure), leaf curling (reduction of surface area exposed to sunlight), wilting (loss of turgor pressure resulting in drooping), and leaf scorching (brown, dry, crispy edges on leaves due to excessive sunlight). These symptoms reveal the plant's struggle with adjusting to the available light, manifesting in various ways depending on the severity of the light deficiency or excess.

Does the Kentia palm require varying temperatures throughout the year?

The Kentia palm does not require different temperatures for different growing seasons. The most important step in seasonal care is to maintain the environment at an optimal temperature range. It is recommended to keep this plant indoors to have better control over the temperature, regardless of the external climate. Light is also crucial for tropical species like the Kentia palm. These plants prefer a moderate amount of sunlight, specifically dappled or filtered light. When growing your plants indoors, it is best to provide bright but indirect light. Too much direct sunlight can harm the plant's leaves and limit its growth potential.

ALSO IN THE LIBRARY

You might also like.