Methods and systems for determining a recommended harvest date of aCannabisbiomass are disclosed. The methods and systems include a research network having a plurality of databases and a plurality of software modules stored thereon; a grower base module operable to send data to, and receive data from, the research network via a communication network; and an extractor base module operable to evaluate an extract and send data to the research network via the communication network. An optical sensor, including a hyperspectral or multispectral camera, provides current images of theCannabiscrop. An analyzer module and time-to-harvest module may be used to determine a recommended harvest date based on historical data.