Foliage placement trouble

I am having a problem with my foliage where I have added a plane to my scene and ticked the static mesh filter when painting so that I could add my foliage to it which works fine, but when I try to delete the plane it deletes all of my foliage along with it.

Can’t seem to work out a fix I hope someone can help.

this is just how the engine works, im pretty sure the engine treats it as the “Parent” of the foliage, so deleting it deletes the foliage