I have had to get refunds on all seeds I ordered from Amazon vendors because they were irradiated by shipment with the US Postal Service. Seeds I have shipped via UPS are not irradiated and viable. Amazon seed vendors refuse to ship via UPS in general ans I just wanted you to be aware. My neighbor grows heirloom varieties and he has had problems with Amazon including getting the wrong tomato varieties. I think this is important enough that Amazon now has to address this and the shippers need a dedicated "Live" dedicated shipping method.