Mature size & growth rate

How big does Forget's Anthurium (Anthurium forgetii) get?

Also called Forget's Anthurium, Forget's Flamingo Flower, Round-leaf Anthurium.

More about forget's anthurium

About Forget's Anthurium

Anthurium forgetii · also called Forget's Anthurium, Forget's Flamingo Flower · houseplant

Forget's Anthurium is a compact Colombian aroid prized for round, velvety peltate leaves with no sinus and frosted silver-white veining. Grow it in bright indirect light, a chunky bark mix kept lightly moist, and high humidity above 60%. The ASPCA lists Anthurium as toxic to cats and dogs, so site it out of reach.

Mature size: Compact indoors, usually around 40-50 cm tall and wide; individual leaves commonly 15-25 cm across. Reports of larger plants (60-80 cm) refer to mature or wild-grown specimens.

Indoor size vs how big it gets in the wild

Forget's Anthurium 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 compact indoors, usually around 40-50 cm tall and wide. In the ground with no restriction it is a completely different plant — individual leaves commonly 15-25 cm across. reports of larger plants (60-80 cm) refer to mature or wild-grown specimens. — 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

Forget's Anthurium is a slow grower. Realistically, expect many years — it gains very little each season, so it can hold the same shelf-sized footprint for 5-10+ years. Its feeding profile backs this up: feed lightly during active growth (spring to early autumn) with a balanced or orchid-formulated liquid fertiliser diluted to roughly half strength, about every 4-8 weeks. less is more: this slow grower is sensitive to salt buildup, so flush the substrate periodically and stop feeding in winter.

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

How to keep forget's anthurium smaller

You are not stuck with the maximum size. For forget's anthurium specifically, these are the levers, in order of impact:

Divide the clump every year or two — splitting forget's anthurium 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 forget's anthurium 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 forget's anthurium bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for forget's anthurium 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 forget's anthurium light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When forget's anthurium outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for forget's anthurium:

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 forget's anthurium repotting guide. If you want more of this plant instead of a bigger one, the forget's anthurium propagation guide turns prunings into new plants.

Forget's Anthurium size — frequently asked questions

How big does forget's anthurium get?

Forget's Anthurium reaches compact indoors, usually around 40-50 cm tall and wide when grown indoors, and far larger where it grows unrestricted (individual leaves commonly 15-25 cm across. reports of larger plants (60-80 cm) refer to mature or wild-grown specimens.). 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 forget's anthurium slow or fast growing?

Forget's Anthurium is a slow grower. Expect many years — it gains very little each season, so it can hold the same shelf-sized footprint for 5-10+ years. Forget's Anthurium 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 forget's anthurium take to reach full size?

Roughly many years — it gains very little each season, so it can hold the same shelf-sized footprint for 5-10+ years. Light, pot size and feeding move that timeline more than anything else.

How do I keep forget's anthurium smaller?

Divide the clump every year or two — splitting forget's anthurium 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 forget's anthurium 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.