Randomizing blender models on your terrain?

I’m using TerrainGrid to automatically generate a landscape, and I’m curious if it would at all be possible to randomly place premade blender models along the map somehow?
I’ve created trees, rocks, grass, etc. in blender and am interested in importing them into my JME project and having them randomly appear on the randomly generated terrain.

Is there an add-on that could do this? Or a method that people generally use?
I’m completely new to Blender and JME, so apologies if there’s an obvious answer to this question. Thanks

TerrainGrid is deprecated please use https://github.com/jayfella/TerrainWorld instead.