That’s a major question that the season slowly answers, as more and more information about this seed comes to life. Hap is the one who provides all the backstory for this seed, so what he tells us we're going to take as truth. He’s studying them, after all, and he’s eager to collect as many of these seeds as possible. The only thing is, though, that the only way he can get these seeds is for them to become “activated” so he can harvest the seeds... and do some other things with them, but we’re getting ahead of ourselves.