Interesting analogy, but would the tree have fruit if it was barren of leaves?
If we want to take that step, then one must say that, yes, it can produce fruit absent miracles. Jesus produced fruit without miracles. That's not to say he was completely baren of miracles. The miracles he performed are outnumbered by His fruits by a fairly vast percentage. Again, miracles are not a faith producer, they are a faith fullfiller. If you have a cup it can be filled. You don't hand someone a pound of water with no container surrounding it. Faith is a container. The more you excercise it by filling it and putting it's contents to use, the bigger the container gets. If you don't fill it, you might as well not have it. Thus if you bury your talent, it will be taken from you and given to one who will put it to use and make it grow!