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Theo Gardner is a seasoned indoor cultivation expert with over two decades of hands-on experience growing cannabis in controlled environments. 

A specialist in coco growing, crop steering, and climate control, Theo has helped thousands of growers across the globe optimise their grow rooms for consistency, yield, and quality.

With more than 20 years of deep growing knowledge, earned, not theorised, Theo has fine-tuned his craft from small-scale setups to fully automated environments. 

‍He’s been instrumental in the development of the Grow Sensor PRO, using real-world grow data to shape smarter tools for indoor agriculture.

His writing combines scientific curiosity with grounded, real-world insights. Whether he’s mythbusting nutrient schedules, walking readers through VPD optimisation, or analysing environmental data from live grows, Theo brings clarity, confidence, and a grower’s grit to every piece.

You’ll find his work on the Grows Sensor blog, in detailed grow diaries, on YouTube and in guest posts for leading cannabis cultivation publications. 

His content is built on data, experience, and real-time problem solving, not recycled grow myths.

When he’s not tweaking airflow or running environmental experiments, you’ll find him answering questions on forums, contributing to Reddit threads, or exploring open-source integrations with Home Assistant for next-level grow room automation.

Theo writes with dirt under his fingernails, and data on his dashboard.