ASPCA has a link.

Sunny, sorry about your pooch. That's terrible. They scare us so much when sick. If only they could tell us what's bothering them. I have a question about onions..'IF' a dog ate an onion, would happen? My dogs can't stand the smell of onions. On wkends, we order out. We always get something for our two dogs. Either hot dogs or cheese burgers..my little dog won't go near his bowl if a piece of onion is inside..the larger dog sorts through his food, won't touch an onion..Even when I cook, chop an onion, both dogs back off..they hate the smell. lol You wouldn't believe the number of plants that can harm a pet, but it depends on the pet. My friends Cockatiel ate an entire Hedera Helix, 'Ivy' which is considered fatal to birds..it didn't bother him in the least. A similar thing happened to one of my birds. He ate an Ardisia/Corel Berry, which again is supposed to be fatal. I watched him throughout the night..he played, ate and pooped..This happened a couple years ago..he's fine. Check Dog, Bird and Cat Fancy magazines or online sites. They list many toxic plants..Not necessarily fatal..Some plants, when ingested can cause tummy upset. I think CC are on the toxic list, too. Many common plants sold at your local grocery store are poisonous.. Since your girl is a living mop, 'like one of my guys,' be careful when carrying plants around, 'pick up leaves from the floor,' and place where she can't get them. Please don't take this the wrong way, 'since you don't recall dropping leaves from your Cyclamen,' some vets take a guess when our pups/kittens/birds get sick. If they can't find a reason, they make guesses. I've seen it and heard similiar stories. Vets are no different than people doctors. Unless an illness is obvious, they come up with questionable reasons, excuses. Still, better safe than sorry.. I hope your dog is better..How is she acting? Toni

For what it's worth, I've had both dogs and gardens for decades, and never an issue with the dogs poisoning themselves. Pesticides and fertilizers are much more dangerous. Once one ate the dirt where I'd fertilized with blood meal, and then puked it all up on the living room floor, but it wasn't poisonous, just the dirt particles irritating her stomach. Same dog once ate rat bait and had to be rushed to the vet to have her stomach pumped. She was sick as a dog, so to speak, for a couple of days afterwards, but recovered just fine. Wasn't my rat bait, we were in a public park. I complained to the maintenance department but was brushed off since it was just a dog. Could have been someone's toddler, I pointed out, but since it was just a dog they didn't care. Slug and snail baits can be very dangerous. The traditional metaldehyde products are very poisonous, and often beef-flavored to attract the slugs. I've known dogs to die from slug bait. That's why the new iron phosphate baits are so popular, they're nontoxic and not attractive to dogs. Another dog chewed a rhodie down to the ground but was not at all sick afterwards since he spat it all out as he worked on it, and rhodies are definitely poisonous. Another dog would eat the lettuce and tomatoes right out of the garden. Not the tomato plants fortunately, but the red ripe tomatoes. I get poisonous amanita mushrooms coming up in my back lawn every year, but the dogs never give them a look so I don't worry about them. I've found these lists of toxic plants to be darn near useless. Some include absolutely every plant that might cause any kind of adverse reaction, like allergies. Strawberries make these lists that way. I mean let's get a grip here. Strawberries are not poisonous. And toxicity varies by the species of animal, as well as by degree. Some plants might cause a mild discomfort while others are dangerous in moderate quantities. Those are the only ones that should get the label 'toxic'. Horses cannot vomit, so plants that are just mildly irritating to a dog might be very dangerous to a horse. Dogs throw up at the drop of a hat. It's how they're made. They eat garbage for a living and vomiting is their safety valve. I don't worry about mine, I let them live their lives as dogs. They eat grass but rarely anything else in the garden. They pick the berries themselves after having seen me do it, but that's it.

I'm thinking Tiger lilies? Other daylilies? Oregano? Sage? Salvias? Echinacea? Lavender? I do have candytuft, irises, daisies and Egyptian walking onions and the dogs never bother them. The dogs also don't seem bothered by them. Here's an amazing list of what NOT to plant: Here is a link that might be useful: Hooper's list of poisonous plants