Trees are used time and again as symbols through out the volume of the Book. The 'tree of the knowledge of good and evil' was allowed in the Garden of Eden. Right along side the 'tree of life' which is symbolic of Christ. The tree of the knowledge of good and evil is the devil and until Christ banished him, the devil had free access to go to and fro on this earth. Never ever in a flesh body, and when Lucifer rebelled he was sentenced to death. Along with a numbered of angels/souls that followed the devil at the rebellion.
Up until the words 'tree of the knowledge of good and evil were recorded, everything except for Genesis 1:2 was described as 'good'. Now consider where did this knowledge of good and evil come from. God sure did not create the evil, but yet it existed. Planted throughout the rest of the WORD, even stated by Christ Himself explains who this 'tree of the knowledge of good and evil represents.
I’m not going to accept your explanation without further study. I have never, in all my 57 years, heard the tree of knowledge of good and evil described in this way.
God is knowledgeable about evil, even though He cannot stand it, nor did He create it.
But I see in Gen 2:9
“And out of the ground made the Lord God to grow every tree that is pleasant to the sight, and good for food; the tree of life also in the midst of the garden, and the tree of knowledge of good and evil.”
My reading of this is that God created all of the trees.