How many of each seed should I save? I'm using the VST and lately have been trying to save 15 of each seed, but I'm scared to death that I'm going to lose all the seeds in the VST, like it's done before.

I've been saving extra of the Citrus Ball Cactus, because I've read that it's used in a lot of the crosses.

I have all three seed boxes in the game, and have been thinking about saving one of each seed in it, so if anything happens to the VST, I'll have something to self pollinate and start over again.