Repotting guide

When & how to repot Colocasia 'Pink China' (Colocasia esculenta 'Pink China')

Also called Pink China elephant ear, Pink China taro, hardy elephant ear, taro.

More about colocasia 'pink china'

About Colocasia 'Pink China'

Colocasia esculenta 'Pink China' · also called Pink China elephant ear, Pink China taro · tropical

Pink China is a cold-hardy taro cultivar grown for huge heart-shaped leaves on bright pink-red stalks. Give it bright light, constantly moist to wet rich soil, warmth and high humidity, and feed regularly in summer. It is toxic to cats, dogs and horses per the ASPCA, so keep it away from curious pets.

Mature size: Around 4-6 ft (1.2-1.8 m) tall with a similar spread when established; smaller in containers.

Watch for — Spider mites: The most common indoor pest, especially in dry air. They stipple leaves with tiny yellow-white spots and spin fine webbing on the undersides. Raise humidity, rinse foliage, and treat with neem oil or insecticidal soap.

How to tell colocasia 'pink china' needs repotting

Repotting on a calendar is less reliable than reading the plant. For colocasia 'pink china', watch for these signs:

Flowering has tailed off year on year and the clump has become congested and overcrowded.
Lots of leaf and few flowers — a classic sign that colocasia 'pink china' bulbs or tubers need lifting and dividing.
Bulbs visibly bursting the pot or pushing each other to the surface.
It is the natural dormancy window (foliage yellowed and died back) — the only safe time to lift and split.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot colocasia 'pink china'

Lift and divide every 3–4 years once clumps congest. Rather than a true repot, colocasia 'pink china' is lifted and divided once the clump congests and flowering drops off. Clumping, tuberous (cormous) herbaceous perennial that sends up large heart-shaped leaves on upright pink-red petioles from an underground corm. Vigorous and fast-growing in warmth, producing prodigious foliage and freely offsetting cormels around the parent..

What size pot to step colocasia 'pink china' up to

Pot size matters less than depth and spacing here. When you replant colocasia 'pink china', set the bulbs or tubers at the correct depth (a rough guide: two to three times their own height of soil over the top) and space them so they are not touching. A wide, shallow pot suits a clump better than a tall narrow one.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot colocasia 'pink china'

The only safe window is dormancy: wait until the foliage has yellowed and died back naturally, lift and divide then, and replant before or at the start of the next growing season. Disturbing colocasia 'pink china' in full growth or flower sets it back badly.

Step-by-step: repotting colocasia 'pink china'

Wait for dormancy. Let colocasia 'pink china' foliage yellow and die back completely. Lifting while it is in growth wastes the energy it is storing for next year.
Lift carefully. Loosen the soil well away from the bulbs/tubers with a fork and ease the whole clump out without spearing them.
Separate the offsets. Gently pull the clump apart into individual bulbs or tubers. Keep only firm, healthy, blemish-free ones.
Replant at the right depth. Reset them in fresh fertile, humus-rich, moisture-retentive loam at the correct depth and spacing — not touching — so each has room to bulk up.
Water in and rest. Water once to settle them, then keep on the dry side until growth resumes. Do not feed until leaves are actively growing.

Aftercare

After replanting colocasia 'pink china', keep the soil barely moist — not wet — until shoots appear; bulbs and tubers rot in cold, saturated soil. Once leaves are growing strongly, resume normal watering. Hold off feeding until the plant is in active growth again.

The right soil mix for colocasia 'pink china'

Colocasia 'Pink China' wants fertile, humus-rich, moisture-retentive loam. Wants a fertile, organically rich, moisture-retentive mix; amend potting soil with compost and a little extra water-holding material. It tolerates wet feet far better than most houseplants but appreciates aeration to limit rot in cool spells. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting colocasia 'pink china' — frequently asked questions

How often should you repot colocasia 'pink china'?

Lift and divide every 3–4 years once clumps congest for colocasia 'pink china'. Colocasia 'Pink China' is lifted and divided, not "repotted". Every 3–4 years, once the foliage has died back and it is dormant, lift the clump, separate the offsets, and replant at the correct depth in fertile, humus-rich, moisture-retentive loam. Crowding, not pot size, is what reduces flowering over time.

What size pot does colocasia 'pink china' need?

When is the best time of year to repot colocasia 'pink china'?

Do you "repot" colocasia 'pink china', or lift and divide it?

You lift and divide it. Colocasia 'Pink China' grows from bulbs or tubers, so instead of repotting you wait for dormancy, lift the congested clump, separate the healthy offsets, and replant them at the right depth and spacing. Doing this every 3–4 years restores flowering.

Should you fertilise colocasia 'pink china' after repotting?

Hold off feeding colocasia 'pink china' until it is in active growth again. Fresh soil already carries enough nutrients to get it re-established, and feeding disturbed roots too soon does more harm than good.