Genesis 2:5-6, 9

no shrub or plant of the field was yet in the earth, and no herb of the field had yet sprouted, for the LORD God had not caused it to rain on the earth, and there was no man to cultivate the ground, but a mist (fog, dew, vapor) used to rise from the land and water the entire surface of the ground

And [in that garden] the LORD God caused to grow from the ground every tree that is desirable and pleasing to the sight and good (suitable, pleasant) for food; the tree of life was also in the midst of the garden, and the tree of the [experiential] knowledge (recognition) of [the difference between] good and evil. [Rev 2:7; 22:14, 19]