Food introduction guidelines vary, but what I've seen is broccoli is okay at 8 mo, spinach at 9-10 mo, and corn at 1 yr (interesting, because a lot of baby foods contain corn). The only reason corn is so late is because it can be difficult to digest, so if you do introduce it earlier, keep an eye out for tummy issues. I think a small amount of oregano is probably okay, but keep in mind that babies have at least as many taste buds as we do, so they generally prefer their food to be on the bland side. HTH!
