Some seed merchants that advertise in Hightimes say "will not send to USA" and some other seed companies don't say that. I ordered from Mark Emery seeds in 2001 and got a lot of good seeds mailed to a PO box. They had 90% germination rate. I kept them in the fridge for 6 years and germinated them last spring. Germination had dropped to about 50%, but I still got 13 oz of dry buds this harvest, thank God I don't need to buy seeds for another 10 years! I saved some pollen from my best looking male plant (BlueberryXMr.Nice) and applied it to just a couple of flowers on my NorthernLights#5 and I got 75 beautiful seeds to save for next time, maybe 5 years from now.

Try "kindseed.com" I don't see anything about "will not ship to USA".