I've never had a problem with alfalfa seeds here. They are just plain old horse/rabbit food, available in most feed and seeds. The only problem I have ever come across is that they come in 50 lb. bags around here and it is a pain to deal with that much. Storing it requires a sturdy, secure container to prevent insects and even pesky raccoons from getting it. Sharing a bag with a fellow gardener works well for me.
