I buy my wheat germ in big jars, and it takes me a few months to go through one jar. I'm vaguely remembering reading that it will stay good for about 3 months.
If you want to use your wheat germ in other ways, it is great on cereal and in yogurt!
When you start to cook, as when you begin to live, you think that the point is to improve the technique until you end up with something perfect, and that the reason you haven’t been able to break the cycle of desire and disillusion is that you haven’t yet mastered the rules. Then you grow up, and you learn that that’s the game.
Adam Gopnik, The New Yorker