To clarify, I think submissions should be limited to what is being contemplated for constructed. For example, if they are going to plant mature trees as part of the initial works, then that should be acceptable to show in the renderings. I think its dishonest to show an unrealistic vision of the...
The city could update their terms of reference for renderings submitted as part of zoning applications. It would be pretty easy to refuse a submission that includes ferns growing out of the slab edges up the facade, or 60' tall birch trees planted in 0.8m deep soil cells on the roof of a podium.
There should be rules about limiting the amount of unrealistic vegetation from renderings, or have a requirement to ensure that developers follow through on what is shown on the renderings.