Does Grobo sell seeds? March 29, 2020 16:48 Updated Grobo does not sell seeds. You can find cannabis seeds through ILGM, True North Seed Bank and many other online and in-store locations. Check out our Seed Selection Guide for more information on which seeds work best in Grobo. Related articles Seed Selection Guide I’m going away - will my Grobo be okay? How much does the system cost to maintain? Are there any discount codes? What's the size and weight of a Grobo?