![john simpson](https://indoorgrowtech.com/wp-content/uploads/2020/12/john_simpson_300.jpg)
I’m John Simpson.
I have my Masters in Horticulture and specialize in plant biology, specifically the impacts that changing environmental conditions have on photosynthesis, plant growth, and fruit production.
I spent nearly 20 years working in research labs, and today I manage a commercial greenhouse in Northern California that focuses on sustainable agriculture. I also run things here on IndoorGrowTech.