Lazullia is a flower that is added by Thaumic Bases. It has 5 growth stages and once fully grown it can be harvested for its own seeds and 1-3 Lapis Lazuli.
Sometimes a thaumaturge needs some lapis for his... thaumaturgy. And sometimes a thaumaturge is just too lazy to venture down into caves just to spend a good 5 hours searching for that blue ore. You have once again used plants to aid you with this noncense[sic]. Lazullia will slowly grow and once fully grown can be harvested. Upon harvesting a thaumaturge will recieve some Lapis Lazuli alongside with a seed.