That was another database.
You won't see more than one height here, unless you mean a height range, such as 12-24 inches.
I've never thought of "two boxes checked" as a difference of opinion. It seems to me that we should strive to check only one box in most of these data categories. Any difference of opinion could then be noted in a comment. I grow a lot of plants that are supposed to be grown in full sun and only in zones up to 8, for instance, but I grow them in the shade in zone 9. That doesn't change the standard instructions for growing the plant, however, and I can always add my experience to the database in the form of a plant comment.