Mature size & growth rate

How big does Taccarum weddellianum (Taccarum weddellianum) get?

Also called Weddell's Taccarum.

More about taccarum weddellianum

About Taccarum weddellianum

Taccarum weddellianum · also called Weddell's Taccarum · tropical

Taccarum weddellianum is a rare South American tuberous aroid grown by collectors for its prickly, mottled petiole and large, deeply dissected umbrella leaf. Like related voodoo lilies it cycles through dormancy, producing an arum-type inflorescence before the foliage. It needs warmth, bright filtered light and a dry rest, making it a connoisseur's seasonal tuber.

Mature size: The leaf can reach roughly 50-90 cm tall on a mature tuber; size scales with tuber maturity and growing conditions.

Watch for — Failure to break dormancy: A cold or waterlogged rest can stall regrowth; keep dormant tubers warm and dry, and resume watering only once new growth appears.

Indoor size vs how big it gets in the wild

Taccarum weddellianum grows into a room-scaled plant of roughly the leaf can reach roughly 50-90 cm tall on a mature tuber — bigger than a tabletop plant, but not a tree. Indoors and in a pot, expect the leaf can reach roughly 50-90 cm tall on a mature tuber. In the ground with no restriction it is a completely different plant — size scales with tuber maturity and growing conditions. — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

It builds steadily in both height and spread to a medium, manageable size, filling a pot and a corner over a few years.

Growth rate and years to mature

Taccarum weddellianum 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 with a balanced liquid fertiliser at half strength only while the leaf is actively growing; withhold all feed during dormancy.

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

How to keep taccarum weddellianum smaller

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

Prune the tallest or longest growth back to a node to hold taccarum weddellianum at the size you want.
Keep it slightly pot-bound and feed sparingly to cap the overall size.
Remove the largest or oldest leaves to keep the footprint in check.

How to grow taccarum weddellianum bigger or faster

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

It already has good light; a yearly pot-up plus spring-summer feeding drives the fastest growth.
Pot up a size every year or two while it is establishing.
Feed and water consistently through the growing season for steady, faster size gain.

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

When taccarum weddellianum outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for taccarum weddellianum:

It crowds the shelf or corner it lives in and starts leaning for light.
Roots circling the pot base or escaping the drainage holes.
It needs a noticeably bigger pot every year — a sign to pot up, divide, or prune.

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

Taccarum weddellianum size — frequently asked questions

How big does taccarum weddellianum get?

Taccarum weddellianum reaches the leaf can reach roughly 50-90 cm tall on a mature tuber when grown indoors, and far larger where it grows unrestricted (size scales with tuber maturity and growing conditions.). It builds steadily in both height and spread to a medium, manageable size, filling a pot and a corner over a few years.

Is taccarum weddellianum slow or fast growing?

Taccarum weddellianum is a moderate grower. Expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Taccarum weddellianum grows into a room-scaled plant of roughly the leaf can reach roughly 50-90 cm tall on a mature tuber — bigger than a tabletop plant, but not a tree.

How long does taccarum weddellianum 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 taccarum weddellianum smaller?

Prune the tallest or longest growth back to a node to hold taccarum weddellianum at the size you want. Keep it slightly pot-bound and feed sparingly to cap the overall size. Remove the largest or oldest leaves to keep the footprint in check.

How can I make taccarum weddellianum grow bigger or faster?

It already has good light; a yearly pot-up plus spring-summer feeding drives the fastest growth. Pot up a size every year or two while it is establishing. Feed and water consistently through the growing season for steady, faster size gain.