papa said: Question does the fragrance vary according to different plants and do the seeds come true.
To answer your questions, yes,fragrance varies from variety to variety.It goes from zero to very strong. Of the brugs we grow,called the warm climate varieties,none come true from seed and must be crossed between varieties to produce seed. There is always an exception and that exception is Arborea which is really a cool climate brug.That one will come true.