GrowingHQ
Houseplantfoliage houseplantStraightforward

Kentia palm

Howea forsteriana

The best large indoor palm and the most expensive, because it grows slowly from seed and cannot be shortcut. It tolerates lower light, cooler rooms and more neglect than any other palm of its size, and a good specimen lasts decades.

Position
Moderate light
Water
moderate demand
Drainage
Free-draining
Grows to
150–300 cm × 90–180 cm
Frost
Frost tender
Difficulty
Straightforward

August

Nothing to do

No sowing, planting, harvesting or pruning window falls in August.

Kentia palm’s year

Resolved for United Kingdom (general). Every window is stored against a climate event rather than a date, so a late frost pocket runs later than the band shows. What else August calls for.

ActivityJFMAMJJASOND
Take cuttingsMay. June.

Timing that travels

The band above resolves this plant's windows into months for one region. These are the windows themselves, stored against a climate event rather than a date — which is the form that survives being carried to a colder garden, a frost pocket, or next year.

Conditions it needs

Light
Partial shade, Dappled shade
Frost
Frost tender
Grows best at
16–24 °C
Soil
Peat-free compost
Soil pH
6–7
Drainage
Free-draining
Water needs
moderate
Drought
moderate tolerance
Waterlogging
poor tolerance
Heat
moderate tolerance
Wind and exposure
poor tolerance
Where these figures come from
LightSourced guidancemoderate confidence
  • Royal Horticultural Society: Kentia palm — position

Checked 2026-08-13

FrostSourced guidancehigh confidence
  • Royal Horticultural Society: Kentia palm — hardiness

Checked 2026-08-13

Grows best atSourced guidancemoderate confidence
  • Royal Horticultural Society: Kentia palm — temperature

Checked 2026-08-13

SoilSourced guidancemoderate confidence
  • Royal Horticultural Society: Kentia palm — soil

Checked 2026-08-13

Soil pHSourced guidancemoderate confidence
  • Plant FinderMissouri Botanical Garden: Howea forsteriana — culture

Checked 2026-08-13

DrainageSourced guidancemoderate confidence
  • Royal Horticultural Society: Kentia palm — soil

Checked 2026-08-13

Water needsHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

DroughtHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

WaterloggingHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

HeatHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

Wind and exposureHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

On your soil

Computed by comparing this plant's recorded requirements against each soil's recorded characteristics. A recorded horticultural fact overrides the comparison where GrowingHQ holds one.

SoilVerdictWhy
Heavy clayWorks, with one conditionKentia palm will crop on heavy clay, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse.
SandyGrows well hereKentia palm grows perfectly well on sandy without special measures, though it is not the soil it would choose.
Chalky and alkalineWorks, with one conditionKentia palm will crop on chalky and alkaline, but one thing has to be dealt with first. The soil is substantially too alkaline for it: it wants pH 6 to 7, and this soil sits around 7.8 to 8.5.The pH is the obstacle. Small shifts are achievable and slow; large ones are not. On chalky and alkaline the dependable answer is a container of the right compost rather than an attempt to change the ground.
LoamPrefers this soilLoam suits Kentia palm as it stands: The pH suits it: it wants 6 to 7, and this soil is in that range. The free drainage is exactly what it wants. The soil holds moisture, which saves a great deal of watering.
SiltyPrefers this soilSilty suits Kentia palm as it stands: The pH suits it: it wants 6 to 7, and this soil is in that range. The free drainage is exactly what it wants. The soil holds moisture, which saves a great deal of watering.
Peaty and acidWorks, with one conditionKentia palm will crop on peaty and acid, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse.
Shallow over rockGrows well hereKentia palm grows perfectly well on shallow over rock without special measures, though it is not the soil it would choose.
Made ground and urban soilWorks, with one conditionKentia palm will crop on made ground and urban soil, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse.

Not sure which you have? Four hand tests will settle it.

Space and spacing

Mature height
150–300 cm
Mature spread
90–180 cm
Rooting depth
35 cm
Where these figures come from
Mature heightHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

Mature spreadHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

Rooting depthHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

In a container

Minimum volume
15 litres or more
Minimum depth
30 cm
Where the container figures come from
Minimum volumeHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

Minimum depthHorticultural consensusmoderate confidence

No external citation — see the evidence type above.

Checked 2026-08-13

Where and how you can grow it

Each way of growing is assessed separately, and “not assessed” is a real answer rather than a gap we have filled in with a guess.

MethodSuitabilityWhat it needs
Indoor potWell suited
source

Sourced guidancemoderate confidence

  • Royal Horticultural Society: Growing method suitability

Checked 2026-08-13

ContainerWell suited
source

Sourced guidancemoderate confidence

  • Royal Horticultural Society: Growing method suitability

Checked 2026-08-13

Indoors, or outdoors in summer only
WindowsillMarginal
source

Sourced guidancemoderate confidence

  • Royal Horticultural Society: Growing method suitability

Checked 2026-08-13

HydroponicsNot assessed
source

Sourced guidancemoderate confidence

  • Royal Horticultural Society: Growing method suitability

Checked 2026-08-13

Open groundNot suitable
source

Sourced guidancemoderate confidence

  • Royal Horticultural Society: Growing method suitability

Checked 2026-08-13

Tender: will not survive a British winter outdoors.

Growing it

  • TransplantingRepot rarely — every three or four years at most. Kentia palms dislike root disturbance and grow better slightly pot-bound, and the fine roots break easily.
  • ProtectionKeep it away from radiators and cold draughts, and wipe the fronds occasionally. Red spider mite in dry heated air is the main pest and shows first as a dull stippling on the fronds.
  • WateringGive it a thorough soak once the top three to five centimetres are dry, let it drain right through, and never leave the pot standing in water — a kentia tolerates being dry far better than it tolerates wet roots, and root rot in a cold room is what kills most of them. Reduce noticeably from October. Browning frond tips are the plant's main complaint and are usually dry air or salts rather than thirst, so raise the humidity and flush the compost before reaching for the watering can. Kentias resent root disturbance, so repot rarely and top-dress instead.
  • FeedingOne half-strength feed a month while it is in growth, and none otherwise. A kentia is slow by nature and feeding will not speed it up appreciably; what it does do, if overdone, is leave salts that brown the frond tips of a plant grown specifically for its foliage. Nothing between October and April. Old lower fronds yellowing and being shed as new ones come from the crown is the normal way a palm grows, not a deficiency.
Where this guidance comes from
TransplantingSourced guidancemoderate confidence
  • Royal Horticultural Society: Howea — care

Checked 2026-08-13

ProtectionSourced guidancehigh confidence
  • Royal Horticultural Society: Palms indoors

Checked 2026-08-13

WateringSourced guidancemoderate confidence
  • Royal Horticultural Society: Howea forsteriana — cultivation

Checked 2026-08-13

FeedingSourced guidancemoderate confidence
  • Royal Horticultural Society: Howea forsteriana — cultivation

Checked 2026-08-13

What goes wrong

Start from what you can see

Safety and edibility

Cats and dogs

Listed as non-toxic to cats and dogs

Kentia palm appears on published non-toxic lists for cats and dogs. That is a statement about the plant's chemistry, not a guarantee: any plant eaten in quantity can upset an animal, so it is still worth discouraging heavy chewing.
source

Sourced guidancehigh confidence

  • ASPCA Animal Poison Control Center — toxic and non-toxic plant listAmerican Society for the Prevention of Cruelty to Animals: Howea forsteriana — non-toxic plants list

Checked 2026-08-13

  • Pets and livestockpetsNot toxic to cats or dogs.
    source

    Sourced guidancehigh confidence

    • Royal Horticultural Society: Howea forsteriana

    Checked 2026-08-13

    No precautions needed.

Sources for this page

GrowingHQ editorial synthesis · Plant Finder · Royal Horticultural Society

Each figure on this page carries its own citation, under the “where these figures come from” note in its section. Record last reviewed 2026-08-14.

If something is wrong with it

Something else? Work through it with the diagnostic tool.