I use almost all certified organic and heirloom seed unless I get it from a trusted person I know. Its so sad that we cant just use whatever seed we can get these days, but we're quite a bit beyond those years im afraid...I always tell people just plant what you can. Even if all you have is a balcony outside an apartment, plant some pollinator friendly flowers and some tomatoes/peppers/beans, or herbs. Every little bit helps! Farm on!