The Vertical Farm develops farming and agricultural knowledge while providing food for the growing city.

Level Pop Max Increase 1st Knowledge Fragment 2nd Knowledge Fragment  3rd Knowledge Fragment Genium Cost
1 3000 Ecological Footprint Water Solar Cell
2 4500 Mushroom Vermicompost n/a
3 6000 Hydroponics Photobioreactor n/a 10000
4 7500 Phytotron Vegetal Bunker n/a
5 9000 Ultraponic n/a n/a 75000

The Vertical Farm provides the greatest increase in your population maximum of any building.