Can I dry my cannabis in Grobo? September 19, 2019 13:44 Updated Yes, Grobo has the ability to dry your harvest. You can purchase a drying rack in our online store. In the meantime, check out our video on how to harvest your cannabis! Related articles How do I harvest cannabis? What cannabis yields can I expect? How many harvests can I get out of a Grobo? Does any smell leak out of Grobo? Do I have to use Grobo brand nutrients?