The confusing answer is yes and no. It is legal to possess cannabis, including seeds, for personal adult use. It is also legal to grow your own cannabis. Although the amounts that constitute personal use are yet to be defined. And all trade of any part of the plant remains strictly prohibited. This has resulted in an awkward grey area to kind of solve the problem of legally growing your own plant with legal’ish seeds. Regarding hemp seed you could contact hemptons.co.za, synerchiorganics.com, or Hempoint in the Czech Republic.

Here are some helpful links.

Buy Cannabis Seeds in South Africa

Autoflower vs Feminized vs Regular Cannabis – What’s the difference?

Are Cannabis Seeds Legal In South Africa