Indoor Growing Simplified
Advanced techniques and recommended gear written by me: a plant biologist and commercial greenhouse grower.
IGT Specializes in Grow Room Ventilation
Fight disease and enjoy bigger yields by regulating your grow room’s conditions. I’ll show you how.
Grow Room Ventilation
An outdoor plant enjoys breezes and fresh air, a luxury unavailable to your indoor plant. Learn how to replicate those conditions in your grow room for healthy, year-round harvests.
Inline Fans
Inline fans recycle your grow room’s air for optimal growing conditions, but how much fan do you need and which manufacturers can you trust? This guide explains everything.
Carbon Filters
Carbon filters are used to neutralize or reduce the odors your plants produce. If you care about discretion, you need to read this guide about how to choose the right carbon filter.
But There’s More to Growing Than Efficient Airflow
Learn about hydroponic systems, grow lights, plant nutrition, and more with our in-depth guides written by real experts.
12 Best Hydroponic Systems
Do you want more 10x more production with less hassle and waste? Then it’s time you jumped on the hydroponics bandwagon. These 12 systems make it easy, and there’s something for everyone.
5 Types of Grow Lights
Plants need sunlight to grow. (Groundbreaking stuff, I know.) But what if you want to grow where there isn’t much (or any) sunlight? Then you need to invest in some grow lights.
16 Essential Nutrients
Your system is set up, you’ve got your seedlings, and you’ve promised your wife an organic, homegrown meal for her birthday three months from now. You’d better nail your nutrient mix.
About Me
I’m John Simpson.
My name is John Simpson, and I own a farm in Northern California that specializes in sustainable agriculture.
Before starting this farm, I spent nearly 20 years in the lab studying the impacts of changing environmental conditions on plant biology. I have my Masters in Horticulture and have been working to advance hydroponic growing techniques for almost 30 years, specializing in ventilation systems.