Reporting in. No trouble so far after a few rounds. Worrying about lack of seeds seems unnecessary now that I realized minions take twice as long to grow (10 days) on the second bed as it takes to produce their seeds in the first one. So my fc is already swimming in different seeds.

Also mixing Krakka in with the minions works because I got an Eggplant Knight seed from all 3 Krakka I planted. It only takes 3 days as well and then you can just plant the Knights where the Krakkas were.