Buying cannabis seeds online in California is legal for adults aged 21 and older, as long as the seeds are intended for personal cultivation. Under , California residents can legally grow up to six plants per residence. Legal Landscape in California (2026)
As of early 2026, cannabis seeds are federally legal as "hemp" if they contain less than 0.3% THC. However, a new federal law (Section 781) is set to redefine seeds based on the mother plant's THC content starting November 12, 2026 , which may restrict interstate shipping in the future. buy cannabis seeds online california
State law caps personal cultivation at six plants per household, regardless of how many adults live there. Buying cannabis seeds online in California is legal