There are many drawbacks to vertical farming. They mainly come down to cost. Farming well requires deep know-how and expertise; it has proven extraordinarily difficult to expand vertical farms in a way that holds quality consistent while driving costs down. Optimizing production at a small scale is very different from doing so at a large scale.
Now a young Silicon Valley startup called Plenty thinks it has cracked the code. It has enormous expansion plans and a bank account full of fresh investor funding, but most excitingly, it plans to build a 100,000 square foot vertical-farming warehouse this year in Kent, Washington, just outside of Seattle.