I have kind of a stupid question that I could probably look up, but I'd rather ask you

Do Jordan almonds go bad? I was thinking of doing the 5-almonds thing as a favor (we weren't originally going to have them, but now I kind of want them), but I would have to do them gradually over time. I won't have time to do them in the week leading up to the wedding. If I bought them in bulk, like, now, would they be totally gross in 2 months?
Also, do you have the explanation or where I can find the explanation for why there are five given? I know, again, I can look this up, but I'd rather hear this from someone who's in Italy.
Thank you!