Amorphophallus titanum

Titan arum

Amorphophallus titanum, the titan arum, is endemic to western Sumatra and has the largest unbranched inflorescence of any plant. A single leaf grows for about a year, the tuber rests for about four months, and plants first flower after roughly ten years from seed. It needs year-round warmth, humidity and a lot of space.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light Bright, filtered lightDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Grows in openings in rainforest on limestone hills in western Sumatra, particularly southern Aceh and North Sumatra. The gap habitat gives the huge leaf more light than the forest floor.

Few records carry an elevation; the measured nights of 23-25 C are lowland to low-hill conditions.

Sumatera

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates

✓ Humidity band, and how to hold it

✓ Light as DLI and PPFD for a grow light

✓ Wet and dry seasons, and whether to rest it

✓ Substrate and airflow

✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.