Problems with plant and structure generation

Hi. I made a new tree and two plants (one growable like cactus and another a crop) and in world generation I restricted every biome except Plains in the case of the tree and it's spawning and wooded badlands plateau and river, and probably in other biomes I didn't check. The same thing happens with the crop, I restricted every biome except wooded badlands plateau and instead of spawning there it's spawning in plains. The growable plant isn't even spawning anywhere. What can I do?