He here by these expressions intimates in enigmatical language the incorporeal species; since the expression, "before it was upon the earth," indicates the arriving at perfection of every herb, and of all seeds and trees. But as to what he says, that "before it had sprung up upon the earth," he had made every green herb, and grass, et caetera, it is plain that the incorporeal species, as being indicative of the others, were created first, in accordance with intellectual nature, which those things which are upon the earth perceptible to the outward senses were to imitate.
Philo on the Invisible Blueprint Behind All Creation
The Midrash of Philo 5:2