How do I harvest cannabis? Robyn July 29, 2018 13:54 Updated Follow In the video below, our Horticulturalist Stephen, shows us exactly what you need to do once your grow is finished. Related articles Seed Selection Guide Growing Timeline - What to Expect My nutrient bottles are low - what do I do? When will my Grobo order ship? Where can I find the Grobo app? Comments 0 comments Please sign in to leave a comment.