Mature size & growth rate

How big does Fishbone Cactus (Epiphyllum anguliger) get?

Also called Zigzag Cactus, Ric Rac Cactus.

More about fishbone cactus

About Fishbone Cactus

Epiphyllum anguliger · also called Zigzag Cactus, Ric Rac Cactus · houseplant

The fishbone cactus is a Mexican epiphyte grown for its deeply zigzagged, flat green stems that trail like a fish skeleton. Easy and forgiving, it thrives in bright indirect light, an airy fast-draining mix, and moderate watering, rewarding a cool dry winter with fragrant night-opening flowers. A spineless jungle cactus and ASPCA-listed non-toxic to pets.

Mature size: Trailing stems commonly reach 60-90 cm long, draping well over the rim of a hanging pot.

Indoor size vs how big it gets in the wild

Fishbone Cactus 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 trailing stems commonly reach 60-90 cm long, draping well over the rim of a hanging pot.. A pot, your light levels and a little pruning are what set the final size in a home, far more than the plant's theoretical potential.

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

Fishbone Cactus 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: feed every 2-4 weeks in spring and summer with a balanced or low-nitrogen houseplant feed at half strength; a higher-potash feed ahead of autumn supports blooming. pause feeding through the cooler winter rest.

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

How to keep fishbone cactus smaller

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

Trim the longest vines back to the length you want — fishbone cactus 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 fishbone cactus 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 fishbone cactus bigger or faster

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

Good light plus a moss pole or trellis triggers the longest, fastest, largest-leaved growth.
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 fishbone cactus light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When fishbone cactus outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for fishbone cactus:

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

Fishbone Cactus size — frequently asked questions

How big does fishbone cactus get?

Fishbone Cactus reaches trailing stems commonly reach 60-90 cm long, draping well over the rim of a hanging pot. when grown indoors. 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 fishbone cactus slow or fast growing?

Fishbone Cactus is a moderate grower. Expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Fishbone Cactus 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 fishbone cactus 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 fishbone cactus smaller?

Trim the longest vines back to the length you want — fishbone cactus 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 fishbone cactus grow bigger or faster?

Good light plus a moss pole or trellis triggers the longest, fastest, largest-leaved growth. 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.