Taro (Colocasia esculenta) care

Aroids · straightforward to keep

Taro (Colocasia esculenta) wants bright light, including several hours of direct sun. Water it every 4 days. Keep it wet. Not damp — wet. A colocasia that dries out fully drops its leaves and may not come back. Pot it in rich and moisture-retentive — the one aroid that wants it wet. Balanced feed at half strength every second or third watering, spring through summer only, and repot once a year. Humidity: 60% and above, or spider mites will find it. Toxic to cats, dogs and people if chewed — the sap carries insoluble calcium oxalate crystals, which burn the mouth and throat.

Taro: the elephant ear grown as a food crop across the tropics, with huge soft leaves held on drooping stems. Unlike every other aroid on this list it wants to be wet — it grows in paddies — and will happily sit in a saucer of standing water. Indoors it needs the brightest spot you have.

Quick facts

Water: Water every 4 days. Keep it wet. Not damp — wet. A colocasia that dries out fully drops its leaves and may not come back.
Light: Bright light, including several hours of direct sun.
Humidity: 60% and above, or spider mites will find it.
Soil: Rich and moisture-retentive — the one aroid that wants it wet.
Feeding: Balanced feed at half strength every second or third watering, spring through summer only.
Repotting: Repot once a year.
Toxic to pets: Toxic to cats, dogs and people if chewed — the sap carries insoluble calcium oxalate crystals, which burn the mouth and throat. Keep it off the floor if anything in the house tastes its way through life.
Difficulty: Straightforward.
Mature size: 1–1.5 m indoors.
Native to: Southeast Asia; cultivated worldwide.

Watering a Taro

Water every 4 days. Keep it wet. Not damp — wet. A colocasia that dries out fully drops its leaves and may not come back.

That cadence is the one PlantParlour sets for this species when you name it, and it is deliberately on the cautious side — a plant that asks a day early is safer than one that asks a day late. Log each watering and the reminder moves with the plant rather than with the calendar.

Light

Bright light and happy in direct sun for part of the day — unlike its alocasia cousins, this is a marsh plant from open ground.

Humidity and temperature

60% and above, or spider mites will find it. Central heating in winter is what turns a comfortable room into a dry one, and it is the usual reason an established plant suddenly browns at the edges or picks up spider mites.

Soil and potting

The exception to every aroid drainage rule. Colocasia grows in standing water in the wild and is perfectly happy in a heavy, rich compost kept constantly damp, even in a saucer of water.

Feeding

Balanced feed at half strength every second or third watering, spring through summer only. Stop feeding in autumn and start again when you see new growth in spring — feeding a plant that isn't growing just builds up salts in the pot.

Repotting

Repot once a year. Once a year in spring. Expect to find offsets — small corms around the parent — which can be potted separately. Do not size up more than one pot at a time.

Common problems

Leaves dropping one after another over winter
Dormancy. Alocasias often go down to nothing and come back in spring.

Fix: Cut the water right back, keep the corm just barely damp, stop feeding, and wait. Throwing it out in February is the usual mistake.
Fine webbing, leaves going dull and stippled
Spider mites. This genus is their favourite.

Fix: Shower the plant, wipe both sides of every leaf, and treat weekly for a month. Raise the humidity or they come straight back.
Yellow leaf with a brown mushy stem
Rot at the corm from a wet mix.

Fix: Unpot immediately, cut back to firm white tissue, and repot into bark and perlite.
Dry brown patches in the middle of a leaf
Sunburn.

Fix: Move it out of direct sun; the damage does not heal.

Propagation

Divide the clump in spring, or pot up the small tubers that form around the parent.

A cutting taken in PlantParlour keeps its link to the plant it came from, so a propagation years later still traces back to the mother plant — which is the point if you ever sell or trade it.

Toxicity and safety

Toxic to cats, dogs and people if chewed — the sap carries insoluble calcium oxalate crystals, which burn the mouth and throat. Keep it off the floor if anything in the house tastes its way through life.

Questions people ask

How often should you water a Taro?

Water every 4 days as a starting point — that is the cadence PlantParlour sets for Colocasia esculenta. Keep it wet. Not damp — wet. A colocasia that dries out fully drops its leaves and may not come back. Light, pot size and the time of year all move that number, so treat it as a reminder to go and check rather than a rule.

How much light does a Taro need?