Emblemantha Urnulata Green (ex Ardisia Sumatera Green)
Emblemantha Urnulata was described by B.C. Stone and is endemic to Sumatra, the sole species in its genus (Emblemantha) within the primrose family (Primulaceae). It's been circulated in the trade under several different names — including "Ardisia sp. Sumatra" (as reflected in this listing) and "Labisia sp. Riau" — all referring to the same genuinely variable, colorful understory plant, since its correct identity as Emblemantha has only recently become more widely recognized. This "Green" form shows the species' foliage in a straightforward green colorway.
Note: as a freshly imported bare-root plant, this specimen typically arrives with just a few leaves — the photo shows a more mature, fuller specimen for reference.
Care tip: Keep the soil moist but never wet — this species dislikes both drying out and sitting in soggy substrate for extended periods.
Give it partial shade to dappled light year-round (never direct sun), a minimum temperature of 61°F (16°C) during the growing season, and acidic, well-draining substrate (a sphagnum, perlite, and peat mix works well). Fertilize sparingly with a diluted balanced liquid fertilizer every two weeks during active growth.
A genuinely interesting taxonomic case — a single-species genus that's spent years circulating under two entirely different genus names in the trade before settling into its correct identity as Emblemantha, a real reminder of how confusing Sumatran understory plant identification can be even for experienced growers.
Care & Specifications
| Difficulty |
Easy to Intermediate |
| Light |
Partial shade to dappled light; never direct sun |
| Humidity |
65%+; terrarium recommended |
| Watering |
Keep moist, not wet; avoid extended sogginess |
| Temperature |
70–82°F (21–28°C); minimum 61°F (16°C) |
| Soil |
Acidic, well-draining mix: sphagnum, perlite, peat |
| Fertilizer |
Quarter-strength balanced liquid fertilizer every 2 weeks during active growth |
| Origin |
Sumatra, Indonesia |