Good, I'm glad you care for your animals. That's always the best start to owning any kind of pet. I worry as well when ever I start working any new reptile as well. It's natural for an animal lover! Your best bet for succes is to follow the guidelines here on the forum. Now, if the plant he consumed is on the safe plant list, don't worry. He's probably swollowed it by now and is digesting it. Veileds are notorious for eating plants. Both of mine do it. Just get him in a screen cage, feed him well, give him proper lighting, watering and you'll be alright. Make sure to keep an eye on his breathing as well. There's many members here willing to help as long as you're willing to listen!