Worth a try using wintersowing as that may be what tricks the seeds as i have read that it can reseed itself now and then if the conditions are ideal.

Personally I have never had any luck growing it from seeds in the greenhouse but that is a totally different environment. Note that "sterile seed" doesn't mean it is impossible, just that the odds are slim. :)

Let us know if it works.

Dave

Thank you Dave. I will try wintersowing.

Not intentionally but mine made a billion babies on its own and now i have 5 million seedling...

The other thing to keep in mind is that although it may produce seed that germinates, it may not be TRUE

The babies are flowering now and they look like thier momma. So yes, they are true