Mature size & growth rate

How big does Colocasia Blue Hawaii (Colocasia esculenta 'Blue Hawaii') get?

Also called Blue Hawaii taro, Blue Hawaii elephant ear.

More about colocasia blue hawaii

About Colocasia Blue Hawaii

Colocasia esculenta 'Blue Hawaii' · also called Blue Hawaii taro, Blue Hawaii elephant ear · tropical

Colocasia 'Blue Hawaii' is a compact elephant ear with chartreuse-green leaves marked by dark purple-black veins and burgundy undersides. It thrives in warmth, bright light and constantly moist, rich soil, growing 90-120 cm tall. A bog-loving aroid, it sulks in cold or dryness and overwinters as a dormant tuber in cooler climates.

Mature size: 90-120 cm tall and 60-90 cm wide; leaves up to 30-45 cm long.

Indoor size vs how big it gets in the wild

Colocasia Blue Hawaii stays fairly low but widens over time — it spreads into a bigger clump by offsets, runners or rhizomes rather than shooting upward. Indoors and in a pot, expect 90-120 cm tall and 60-90 cm wide. In the ground with no restriction it is a completely different plant — leaves up to 30-45 cm long. — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

Size here is about width, not height: the plant builds an ever-wider clump or sends out plantlets and runners while staying relatively short.

Growth rate and years to mature

Colocasia Blue Hawaii is a moderate grower. Realistically, expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Its feeding profile backs this up: heavy feeder during active growth. apply a balanced liquid fertiliser every 2 weeks in spring and summer, or a slow-release granular at the start of the season. stop feeding in autumn and through dormancy.

Want this turned into the right next pot at the right moment? The pot size calculator and the colocasia blue hawaii repotting guide cover when and how much to size up — pot size is one of the biggest levers on how fast colocasia blue hawaii grows.

How to keep colocasia blue hawaii smaller

You are not stuck with the maximum size. For colocasia blue hawaii specifically, these are the levers, in order of impact:

Divide the clump every year or two — splitting colocasia blue hawaii is the main way to control its spread and refresh it.
Remove runners, plantlets or offsets as they appear if you want it to stay a single tight clump.
Keep it slightly pot-bound; a snug pot naturally limits how wide the clump can get.

The keep-it-smaller method, step by step

Lift the whole plant. Slide colocasia blue hawaii out of its pot in spring when the clump has filled it.
Split the clump. Tease or cut the rootball into two or more sections, each with healthy roots and growth.
Repot one division. Put a single division back in the original pot to reset it to a smaller size; pot or give away the rest.
Remove offsets as they form. Through the year, detach new runners or pups to stop it spreading again.

How to grow colocasia blue hawaii bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for colocasia blue hawaii the accelerators are:

Give it a wider pot and let the clump fill it — width is exactly how this plant gets bigger.
Good light plus regular feeding maximises offset and runner production.
Leave plantlets and offsets attached and feed through the growing season for the fastest spread.

Light is almost always the ceiling. The colocasia blue hawaii light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When colocasia blue hawaii outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for colocasia blue hawaii:

The clump bulging over the pot rim or splitting the pot — the cue to divide, not to find a bigger room.
A dense centre that goes bare or tired while the edges keep spreading.
Runners or offsets escaping across the shelf or into neighbouring pots.

If it is the pot rather than the room, it is a repotting job, not a goodbye — see the colocasia blue hawaii repotting guide. If you want more of this plant instead of a bigger one, the colocasia blue hawaii propagation guide turns prunings into new plants.

Colocasia Blue Hawaii size — frequently asked questions

How big does colocasia blue hawaii get?

Colocasia Blue Hawaii reaches 90-120 cm tall and 60-90 cm wide when grown indoors, and far larger where it grows unrestricted (leaves up to 30-45 cm long.). Size here is about width, not height: the plant builds an ever-wider clump or sends out plantlets and runners while staying relatively short.

Is colocasia blue hawaii slow or fast growing?

Colocasia Blue Hawaii is a moderate grower. Expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Colocasia Blue Hawaii stays fairly low but widens over time — it spreads into a bigger clump by offsets, runners or rhizomes rather than shooting upward.

How long does colocasia blue hawaii take to reach full size?

Roughly three to six years to reach mature indoor size, gaining a steady amount each growing season. Light, pot size and feeding move that timeline more than anything else.

How do I keep colocasia blue hawaii smaller?

Divide the clump every year or two — splitting colocasia blue hawaii is the main way to control its spread and refresh it. Remove runners, plantlets or offsets as they appear if you want it to stay a single tight clump. Keep it slightly pot-bound; a snug pot naturally limits how wide the clump can get.

How can I make colocasia blue hawaii grow bigger or faster?

Give it a wider pot and let the clump fill it — width is exactly how this plant gets bigger. Good light plus regular feeding maximises offset and runner production. Leave plantlets and offsets attached and feed through the growing season for the fastest spread.