These can also be grown with tree cuttings planted in a brass flowerpot fed with a fire crystal then no crystal. I planted 20 cuttings on darksday, fed fire on firesday then no crystal, and harvested on darksday. 1 plant yeilded 15 nuggets, another plant yielded 20. I wasn't trying to grow them, in fact, that recipe makes Gold Beastcoins too and tree saplings.