Check out
www.swallowtailgardenseeds.com and see if they have what you want for a decent price; I like them very much. I also buy a lot from Stokes seeds and Jung, even some flower seed from Harris Seeds. A lot of times, I'm looking for specific colors rather than mixes and have better luck at Stokes and Swallowtail. The seeds seem to germinate well. I also have good luck with flower seeds from Parks-they're usually packed in foil packets and seem to keep well. Almost forgot another favorite,
www.selectseeds.com . They also sell very good quality plants. Good luck.