Cryptocoryne jacobsenii

A Sumatran Cryptocoryne described by de Wit in 1976, known from very few wild records in the lowlands of Jambi and South Sumatra. Grow it like other lowland forest-stream crypts: warm, shaded, emersed in a humid tank or submersed in soft water.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Very humid airBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

No rest periodAquatic

Where it grows wild

Lowland Sumatran Cryptocoryne grow in shaded forest streams and on their muddy banks, submersed at high water and emersed when levels drop. Nothing specific is published on this species' habitat, so the profile follows the genus and the measured climate.

The two sites are in the lowlands at about 30–100 m.

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.