Maxthorne Press publishes educational material about plant science and controlled-environment agriculture.

The legal status of plants, seeds, cultivation methods and end uses differs between countries, provinces, states and municipalities. It can change after publication. Nothing on this website authorises conduct prohibited by applicable law.

Reader responsibility

Before cultivating any regulated plant, verify current rules with the competent public authority in the place where the activity will occur. Product labels such as “hemp”, “CBD”, “legal” or “THC-free” do not by themselves establish that cultivation is lawful.

Educational scope

The book explains biology, environmental measurements and controlled-environment technology. It is not legal advice and should not replace advice from a qualified professional.

Country-specific information

Any country-specific legal chapter is dated and must be checked against current primary legislation and official guidance.