Iris toxicity to dogs is news to me; thanks for sharing. Luckily my two dogs leave the irises alone.
In January I learned the hard way that Horse Chestnuts are toxic to dogs too. One of my dogs had a seizure-like episode after ingesting horse chestnuts from last summer. That tree will be coming down this year. Thankfully the compound causing the toxicity isn't retained in their bodies, so lasting or chronic effects aren't expected.
