Kentia Palm
Howea forsteriana · the Thatch Palm
It grows in lush green groves on a single tiny island off Australia, and almost nowhere else. The dark, arching palm of Victorian drawing rooms and the Titanic's palm court still comes from that one speck of rock.
Family
Arecaceae
Origin
Lord Howe Island
In the wild
Grows to 18 m
Indoors
1.8–3 m
Growth
Slow
With pets
Safe
Where it's from
Lord Howe Island, Australia
One tiny island
Endemic to Lord Howe Island, about 600 km off New South Wales, on a speck of rock around 15 sq km.
Grows to 18 m
In the wild a single slender trunk rises far above the metres-tall plant on your floor.
Outdoors: zones 9b–11
Frost-sensitive. Grown outdoors in mild coastal subtropics, indoors everywhere colder.
Grown to fund the wild
This is the inverse of the usual houseplant story. Every Kentia palm sold worldwide is grown from seed collected under licence on Lord Howe Island, a tightly regulated, sustainable harvest that is a pillar of the island's economy. So the global trade does not strip the wild population, it funds its protection. A Vulnerable species made ubiquitous in living rooms by managed cultivation.
Seed only
It cannot be divided or taken as cuttings. Every plant starts from island-collected seed.
Slow to mature
Seeds can take around six years to mature on the plant, which is why a finished palm is costly.
Sold as several seedlings
The full multi-stem look in shops is several seedlings potted together, not one branching plant.
How to keep it
LightLow to bright indirect
Tolerates shade better than almost any palm. Bright indirect is ideal. Direct sun scorches it.
WaterWhen top inch dries
Keep evenly moist, never soggy, with good drainage. Ease off in winter.
HumidityPrefers higherTolerates average humidity but dry air causes brown tips. A pebble tray helps.
Temperature18–24°CComfortable room range. Keep above about 10°C and away from cold drafts and vents.
SoilRich, well-drained mixHumus-rich and free-draining, not fully drying out. It tolerates a range of pH.
FeedingMonthly in growthA balanced or palm-specific feed. Prone to potassium, manganese and boron deficiencies.
DifficultyEasyForgiving and durable, but slow to recover from mistakes.
With petsSafeNon-toxic to cats and dogs. A genuinely pet-safe statement floor palm.
PropagationSeed onlyNo division or cuttings. Seeds are slow and erratic, so home propagation is impractical.
RepottingEvery 2–3 yearsIt has sensitive roots and dislikes disturbance. Repot only when crowded.
What the data says
What it costs
Pricier than most floor palms because it is slow and seed-grown, not because of cultivar rarity.
$25–300+
Price scales with size, age and fullness. Large full floor specimens run well into the hundreds.
IUCN · Vulnerable
In the wild
A Vulnerable island endemic, kept safe by the same trade that fills living rooms.
Assessed Vulnerable by the IUCN. Its entire wild range is a single island of around 15 sq km, which makes it inherently fragile. But the seed harvest is licensed and managed as a pillar of the island economy, historically around four million seeds a year, so the global houseplant trade funds the wild population rather than depleting it.
When it sulks
Brown leaf tipsThe classic. Dry air, underwatering, or fluoride and salt from tap water. Use filtered or rainwater.
Yellowing frondsToo much direct sun, overwatering, or a nutrient deficiency.
Lower fronds browningNormal ageing of old fronds. Trim them off.
Mushy baseRoot rot from overwatering or poor drainage.
PestsSpider mites in dry air, plus mealybugs, scale and thrips.
Varieties & company
The varieties
Straight species
Pairs with · keep apart from
Boston FernCalatheaPeace LilySnake PlantZZ PlantAloe
A new plant, every week.
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