No, every berry has a specific berry tree. Only one tree is capable of spawning Salac Berry ( this one located at Poni Wilds on Poni Island). Some of the more common berry can spawn in multiple berry trees, however.
I know certain berries only spawn and particular trees. What I meant was the Salac Berry only appeared once a large berry pile was produced [at Poni Island]. I have been checking for the Ganlon Berry fora while now at Route 17 and one hasn't appeared despite soft resetting a bit aswell.