Mature size & growth rate

How big does Rivieri Voodoo Lily (Amorphophallus rivieri) get?

Also called rivieri voodoo lily, umbrella arum.

More about rivieri voodoo lily

About Rivieri Voodoo Lily

Amorphophallus rivieri · also called rivieri voodoo lily, umbrella arum · tropical

The rivieri voodoo lily (a name long applied to konjac-type Amorphophallus) grows from a large dormant tuber that throws a single dramatic, foul-smelling flower, then a tall umbrella-like dissected leaf on a mottled snakeskin petiole. It demands a warm growing season, rich moist soil, and a dry winter rest while the tuber sleeps underground.

Mature size: Leaf reaches 0.8-1.5 m tall with a canopy spread of up to 1 m; the inflorescence can rise 0.6-1 m. Mature tubers commonly reach 15-25 cm across.

Watch for — No flower for several years: Young or undersized tubers leaf without blooming. The corm must reach sufficient size and store enough energy before it flowers, so feed well and be patient.

Indoor size vs how big it gets in the wild

Rivieri Voodoo Lily is a tree at heart. Indoors a pot and your ceiling keep it to leaf reaches 0.8-1.5 m tall with a canopy spread of up to 1 m, but in the ground it is a different scale of plant entirely (the inflorescence can rise 0.6-1 m. mature tubers commonly reach 15-25 cm across.). Indoors and in a pot, expect leaf reaches 0.8-1.5 m tall with a canopy spread of up to 1 m. In the ground with no restriction it is a completely different plant — the inflorescence can rise 0.6-1 m. mature tubers commonly reach 15-25 cm across. — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

It gains real height on a trunk or main stem, adding a tier of leaves a year and eventually reaching for the ceiling — this is a plant you grow up, not out.

Growth rate and years to mature

Rivieri Voodoo Lily 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 2-3 weeks through active growth with a balanced liquid fertiliser, shifting to a higher-potassium feed late in the season to bulk up the tuber. stop feeding once the leaf begins to yellow and the plant enters dormancy.

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

How to keep rivieri voodoo lily smaller

You are not stuck with the maximum size. For rivieri voodoo lily specifically, these are the levers, in order of impact:

The decisive tool is the secateurs: rivieri voodoo lily can be topped (cut the main growing tip) to cap its height and force a bushier, shorter shape.
Keeping it deliberately pot-bound in a snug container slows the whole plant and limits ultimate size.
Prune in spring so it heals fast; remove the tallest leader back to a node to reset the height.
Expect to top or hard-prune it every year or two — left alone it heads for the ceiling.

The keep-it-smaller method, step by step

Pick the new height. Decide how tall you want rivieri voodoo lily and find a leaf node or branch point just below that.
Top the main stem. Cut the main growing tip cleanly just above that node in spring; this permanently caps the height and forces side branches.
Keep the pot snug. Avoid jumping to a much bigger pot — a slightly restricted rootball keeps the whole plant smaller.
Maintain the shape. Prune back the tallest new leaders each spring to hold it at the height you chose.

How to grow rivieri voodoo lily bigger or faster

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

It already wants the bright light it needs; warmth, a yearly pot-up and spring-summer feed are the accelerators.
Pot up a size every year or two while young; restricted roots are the main thing holding height back.
Feed regularly through the growing season and keep it warm — height comes from sustained good conditions.

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

When rivieri voodoo lily outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for rivieri voodoo lily:

The top leaves pressing against or bent by the ceiling — the classic "this is now too tall indoors" sign.
It has to be moved away from a light source it has literally outgrown.
Roots filling the largest pot you can reasonably keep indoors — at that point it is top-or-prune or move it outside (if hardy).

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

Rivieri Voodoo Lily size — frequently asked questions

How big does rivieri voodoo lily get?

Rivieri Voodoo Lily reaches leaf reaches 0.8-1.5 m tall with a canopy spread of up to 1 m when grown indoors, and far larger where it grows unrestricted (the inflorescence can rise 0.6-1 m. mature tubers commonly reach 15-25 cm across.). It gains real height on a trunk or main stem, adding a tier of leaves a year and eventually reaching for the ceiling — this is a plant you grow up, not out.

Is rivieri voodoo lily slow or fast growing?

Rivieri Voodoo Lily is a moderate grower. Expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Rivieri Voodoo Lily is a tree at heart. Indoors a pot and your ceiling keep it to leaf reaches 0.8-1.5 m tall with a canopy spread of up to 1 m, but in the ground it is a different scale of plant entirely (the inflorescence can rise 0.6-1 m. mature tubers commonly reach 15-25 cm across.).

How long does rivieri voodoo lily 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 rivieri voodoo lily smaller?

The decisive tool is the secateurs: rivieri voodoo lily can be topped (cut the main growing tip) to cap its height and force a bushier, shorter shape. Keeping it deliberately pot-bound in a snug container slows the whole plant and limits ultimate size. Prune in spring so it heals fast; remove the tallest leader back to a node to reset the height. Expect to top or hard-prune it every year or two — left alone it heads for the ceiling.

How can I make rivieri voodoo lily grow bigger or faster?

It already wants the bright light it needs; warmth, a yearly pot-up and spring-summer feed are the accelerators. Pot up a size every year or two while young; restricted roots are the main thing holding height back. Feed regularly through the growing season and keep it warm — height comes from sustained good conditions.