I know that if you have no idea what kind of plant will grow from a seed then they should not be able to stack, but if the seed type is known then why should not these be stackable? I keep seeds to grow plants that produce Green Thorns, Red Leafs and Orange Petals around for when I need to grow more of them, when my supplies get low. Problem is when I do grow these plants, I have 20 or more plants going at the same time. Meaning I use up storage space keeping 60 or more seeds around at all times. The Thorns, Leafs and Petals all stack up so why not the seeds themselves? I know many things need to be stackable like the granite stones and arcane gems and think all these need to be looked into. Lets change these so people can have more space in their homes.