Shogun Samurai Terra GrowSHOGUN Samurai Terra Grow Terra Grow is a mineral feed that boasts a significant increase in yield. The Samurai Terra range is the only soil base nutrient that uses SmartZen, an ingredient developed specially by the team at SHOGUN. SmartZen aids nutrient transportation and speeds photosynthesis, providing constant fuel for plants to thrive. Growers will see yields up to 8% higher than market competitors. Maximise yields with SmartZen If you know about