Hardiness Zone 11. Flag: this is a true floating aquatic plant (per the source listing's own "Use: Floating"), not a terrestrial terrarium plant — likely miscategorized under Terrarium Plants, similar to Azolla Caroliniana found earlier in this pass. Recommend recategorizing to Aquarium Plants (Floating).
Care & Planting:Neptunia aquatica, the sensitive plant, has fern-like foliage that visibly contracts when touched — a fun interactive floater for aquariums or outdoor ponds. It produces small, bright yellow, 1-inch flowers and grows 3-5" tall as a floating mat. Provide bright light and stable water temperatures; no substrate or planting is needed since it floats freely at the surface.
Amazing has grow three times in size over the last two months super healthy just hung on the side of my pond nothing added and it just took care of itself.