Mature size & growth rate

How big does Anubias afzelii (Anubias afzelii) get?

Also called Afzel's Anubias, narrow-leaf Anubias.

More about anubias afzelii

About Anubias afzelii

Anubias afzelii · also called Afzel's Anubias, narrow-leaf Anubias · tropical

Anubias afzelii is a tall West African aquatic aroid with long, narrow, leathery lance-shaped leaves on upright petioles. A good background plant for larger aquariums and paludariums, it is hardy and slow-growing like other Anubias, attached to wood or rock and feeding from the water column under low to moderate light.

Mature size: Leaves 12-22 cm long; mature plants reach 25-45 cm tall with an indefinite rhizome spread.

Watch for — Algae on slow leaves: Long-lived narrow leaves collect green-spot and beard algae under bright light. Reduce light and improve circulation.

Indoor size vs how big it gets in the wild

Anubias afzelii 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 12-22 cm long. In the ground with no restriction it is a completely different plant — mature plants reach 25-45 cm tall with an indefinite rhizome spread. — 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 afzelii 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: dose a complete liquid aquatic fertiliser into the water column for iron, potassium and trace elements. root tabs are of limited value. optional co2 increases growth rate and leaf vigour.

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

How to keep anubias afzelii smaller

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

Trim the longest vines back to the length you want — anubias afzelii 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 afzelii 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 afzelii bigger or faster

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

When anubias afzelii outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for anubias afzelii:

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 afzelii repotting guide. If you want more of this plant instead of a bigger one, the anubias afzelii propagation guide turns prunings into new plants.

Anubias afzelii size — frequently asked questions

How big does anubias afzelii get?

Anubias afzelii reaches leaves 12-22 cm long when grown indoors, and far larger where it grows unrestricted (mature plants reach 25-45 cm tall with an indefinite rhizome spread.). 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 afzelii slow or fast growing?

Anubias afzelii 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. Anubias afzelii 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 afzelii 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 anubias afzelii smaller?

Trim the longest vines back to the length you want — anubias afzelii 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 afzelii 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.