I am in agreement with Kenneth and Jeanne. I don't think a Bonsai tree in of itself is wicked or evil. Wiccans worship Mother Earth and trees and all sorts of very odd things. I personally am in awe of the beauty of God's creation. The problem is when we take the things that God has made and worship His creation rather than the Creator Himself.
Romans 1:25-27 King James Version (KJV)
25 Who changed the truth of God into a lie, and worshipped and served the creature more than the Creator, who is blessed for ever. Amen.
26 For this cause God gave them up unto vile affections: for even their women did change the natural use into that which is against nature:
27 And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompence of their error which was meet.
Yes, Steve! That is the truth! It is like Chris and Lorraine pointed out in my own life: It is a heart matter. Are you seeking God, but enjoy something He has created, or has the creation become what leads you? I really enjoy my chickens, but while their care dictates how some of my time is used, it doesn't take the place of studying the Word, prayer, or worship. I am not seeking chickens when I should be seeking God. There is much more than this, but my brain still has periods of fog and I can't seem to get it to come out my fingers today.