Arum sooi

A little-known Arum of the A. orientale and A. cylindraceum group, described from Hungary and also listed for Spain. Treat it as a hardy deciduous-woodland geophyte that grows in spring, flowers in late spring and rests in summer.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Probably the floor and edges of deciduous oak or mixed woodland on humus-rich soil, like its close relatives in central Europe. This is generalised from the species group, not documented for this species.

Only two records: one near 1,150 m in northern Spain and one at about 115 m at Budapest.

HungarySpain

🔒 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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Arum italicum Arum maculatum Arum cyrenaicum Arum korolkowii Arum palaestinum Arum rupicola Arum cylindraceum Arum idaeum Arum creticum Arum hygrophilum Arum nigrum Arum orientale All 27 →

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