Arum orientale

A tuberous woodland arum from the Balkans, Crimea, the Caucasus and Türkiye, with a dark purple spathe in spring. It grows leaves through the cool season, flowers in spring and dies back for a summer rest, and it is hardy to hard frost.

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

Deciduous woodland, scrub and woodland edges on humus-rich soils, often on limestone slopes in Crimea and the Black Sea coast. Inferred from the measured climate and the genus.

Mostly lowland to low montane; climate sites range from about 240 to 1,035 m.

UkraineKrymNorth CaucasusSouth European RussiaTranscaucasusRomaniaBulgariaGreeceTürkiyeHungaryAustriaAlbaniaLebanon-SyriaPalestine

🔒 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. Photo from Wikimedia Commons, used under its CC BY-SA 3.0 licence, unmodified.