Mature size & growth rate

How big does Anubias barteri var. nana (Anubias barteri var. nana) get?

Also called dwarf Anubias, petite Anubias.

More about anubias barteri var. nana

About Anubias barteri var. nana

Anubias barteri var. nana · also called dwarf Anubias, petite Anubias · tropical

Anubias barteri var. nana is the compact, hardy dwarf form of barteri, a staple of low-tech aquascapes. Its small leathery leaves grow on a creeping rhizome attached to wood or rock, feeding from the water column under low light. Forgiving and nearly indestructible, it tolerates herbivorous fish and shrimp tanks alike.

Mature size: Leaves 3-6 cm long; mounds stay roughly 8-15 cm tall and spread along the rhizome.

Watch for — Algae buildup: Its slow, long-lived leaves accumulate green-spot and black-beard algae under strong light. Lower light and add gentle water movement.

Indoor size vs how big it gets in the wild

Anubias barteri var. nana does not get tall — it gets long. Size here is about stem length and how you train or cut it, not how much floor it claims. Indoors and in a pot, expect leaves 3-6 cm long. In the ground with no restriction it is a completely different plant — mounds stay roughly 8-15 cm tall and spread along the rhizome. — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

Growth shows up as lengthening stems that trail down or climb up a support; the plant can be kept tiny or grown metres long from the exact same root system.

Growth rate and years to mature

Anubias barteri var. nana 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: dose a complete liquid aquatic fertiliser into the water column for potassium, iron and micronutrients. root tabs are largely wasted on this rhizome-feeder. light co2 injection accelerates growth but is optional for a healthy plant.

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

How to keep anubias barteri var. nana smaller

You are not stuck with the maximum size. For anubias barteri var. nana specifically, these are the levers, in order of impact:

Trim the longest vines back to the length you want — anubias barteri var. nana takes hard cutting well and bushes out from the cut.
Cut just above a leaf node; each trimmed stem usually branches into two, so pruning makes it fuller, not sparser.
The cuttings root easily in water or mix, so "keeping it smaller" doubles as free new plants.
A trim once or twice a season is usually enough to hold its length.

The keep-it-smaller method, step by step

Decide the length you want. Pick the point each vine of anubias barteri var. nana should stop — you can be aggressive; it regrows readily.
Cut just above a node. Snip about 0.5 cm above a leaf node so the stem branches there instead of dying back.
Root the cuttings. Drop the trimmed pieces in water or mix — they root in 2-4 weeks and can fill the same pot for a bushier look.
Repeat as it runs. Re-trim whenever it overshoots; regular light pruning keeps it both smaller and fuller.

How to grow anubias barteri var. nana bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for anubias barteri var. nana the accelerators are:

More (indirect) light dramatically lengthens the vines and enlarges the leaves.
Give it something to climb — many vines grow far faster and bigger up a support than trailing.
Feed through spring and summer and keep it consistently watered while it is actively running.

Light is almost always the ceiling. The anubias barteri var. nana light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When anubias barteri var. nana outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for anubias barteri var. nana:

Vines pooling on the floor or wrapping past where you want them — purely a trimming cue, not a repot one.
Bare, leggy stems with leaves only at the tips (usually a light problem, not a size one).
A tangled mass that has outrun its support and needs cutting back and re-training.

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

Anubias barteri var. nana size — frequently asked questions

How big does anubias barteri var. nana get?

Anubias barteri var. nana reaches leaves 3-6 cm long when grown indoors, and far larger where it grows unrestricted (mounds stay roughly 8-15 cm tall and spread along the rhizome.). Growth shows up as lengthening stems that trail down or climb up a support; the plant can be kept tiny or grown metres long from the exact same root system.

Is anubias barteri var. nana slow or fast growing?

Anubias barteri var. nana is a moderate grower. Expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Anubias barteri var. nana does not get tall — it gets long. Size here is about stem length and how you train or cut it, not how much floor it claims.

How long does anubias barteri var. nana 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 anubias barteri var. nana smaller?

Trim the longest vines back to the length you want — anubias barteri var. nana takes hard cutting well and bushes out from the cut. Cut just above a leaf node; each trimmed stem usually branches into two, so pruning makes it fuller, not sparser. The cuttings root easily in water or mix, so "keeping it smaller" doubles as free new plants. A trim once or twice a season is usually enough to hold its length.

How can I make anubias barteri var. nana grow bigger or faster?

More (indirect) light dramatically lengthens the vines and enlarges the leaves. Give it something to climb — many vines grow far faster and bigger up a support than trailing. Feed through spring and summer and keep it consistently watered while it is actively running.