I want to preserve about 35 seeds for about 6 months. A friend of mine told me to bury them. Seeds>zip lock bag>tin>locker box>bag>ground. I also read to put them in the fridge. I don't want them in my house because I live with my parents still (need to get my own place) and I don't want them to find it at all, so I don't even want to hide it in my closet. What should I do that is best for my seeds but also not so risky for my parents finding them?