My puppy chewed a hyacinth bulb. Is it toxic? What should I do?

Dogs will be dogs! Hyacinth bulbs and the entire tulip family aren't extremely toxic to dogs, but if consumed in large enough quantities they can cause GI upset and even some cardiorespiratory changes. In this case, if only one bulb was chew (not even swallowed) and you have yet to see any clinical signs, you probably shouldn't spend too much time worrying about it. If you want to be really careful, you can certainly go to the vet and start Cali on a decontamination protocol. This would certainly be the safest option but might be unnecessary. Inducing vomiting at this point in time would be pointless as the stomach has already moved anything that was eaten down into the intestines. You might also consider calling up the pet poison helpline and speak with the toxicology experts over there. They know their stuff and deal with this kind of thing every single day. Hope this helps. Good luck with Cali.