Abstract: A modular plant propagation system and apparatus utilizes a first or lower reservoir containing a liquid plant nutrient in fluid communication with a second or upper reservoir in which a plant propagation support module utilizes a sterile, low water retention, linear foam plastic providing fluid communication between the exterior and interior of the second or upper reservoir. The nutrient fluid in the first nutrient reservoir is forced up into the second reservoir by compressed gas for predetermined cycles and periods of time to provide nutrients to the roots of the plants supported by the linear foam plant propagation support module. A computer is used to control air and root temperatures, humidity, nutrient quality, nutrient cycling rate and level in the first and second reservoirs and utilizes an image recognition apparatus to measure plant growth rate and produce maturity or ripeness to achieve optimum or maximum growth rate potential for the plant being propagated.