Those flowers do not have a supporting block beneath them (additionally above water), ocurred on amplified world. A third flower popped off as I came near that scene.
Can't tell how to recreate as the world generator did this.
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Could you give the seed of the world you generated, and the coordinates of these flowers? That way it'll be reproducable
Great. Gets marked as a duplicate of an year-old bug. Instead of actually trying to fix it, that is what I want. The said clone of Minecraft Terraria hasn't this bug. They first generate terrain, then adding water and finally add decorations like this. Man, this would never happen if we would be still in Alpha without any grass.