Devices and methods for growing plants by measuring liquid or nutrient usage rate

This invention provides Adaptive Growth Technology, smart garden devices for gardening systems, including hydroponics systems, and methods for modifying plant growth regimes based on the liquid usage rate and/or the nutrient usage rate of the plant. Characteristics of the plant growth regimes that are modified include: liquid delivery rate and/or quality, nutrient delivery rate and/or quality, add nutrient rate and/or quality, display or display rate of add nutrient quality and/or quantity, and/or photoradiation delivery rate and/or quality. This invention provides methods for making the devices of this invention and provides methods for using the devices of this invention. In an embodiment, the hydroponics system includes the smart garden device or the smart garden device fits in a chamber of the hydroponics device. In an embodiment, the steps are performed automatically without human intervention.