Greenhouse grow in Colorado?

I am a licensed caregiver allowed up to 72 plants. I would really like to set up a large scale greenhouse grow this year, but do not really know where to begin. How large should I construct the greenhouse(s), and how should the irrigation system be set up to maximize yields come october?

Thanks!

there are lots of variables that effect the answer to your questions, the primary one being what strain(s) are you planning on growing. but to give you a general answer, count on each plant taking up 2 to 3 square feet of floor space and then add space for equipment and access.

your watering system will depend on whether you choose to use hydro or grow in soil. i'm sure you can find commercially available systems for either choice that are designed for growing something else but will work with pot.

that would have to be one big ass greenhouse!!!!!!!!!

Ideally I will have as much space as i need (multiple acres) and am too paranoid to use anywhere commercial