Finally got a bloom! This is a Drymonia species, and from a bit of sleuthing, I've uncovered that this has been going around under a typo— this plant is from San Martin, Peru, not saint-martin island.

Higher humidity so far, maybe it can go lower? totally experimental.

This species climbs backdrops- give it a vertical surface to adhere on.

Keep above 50°f at all times.

This is one of the plants that I would not want to ship if your weather is below 40°f lows currently.