Tiny trees are tagged "shop=florist", but I disagree. The description on https://wiki.openstreetmap.org/wiki/Key:shop says "Shop focused on selling bouquets of flowers (see shop=garden_centre for potted flowers)."

Tiny trees sells no flowers, they sell tiny trees, perhaps like a non-Japanese form of Bonsai. It's mostly succulents, pined to look like palms and other trees. I would think "garden_centre" is also wrong, I'd feel tricked if I looked for an actual garden centre and the map led me here. Perhaps "shop=interior_decoration" is the best fit for this really odd (and beautiful) store. But I think "shop=art" would also be correct. Florist isn't.