Exactly. Plant everything for you and them, and let them choose. What they don't eat, you can pick and freeze for yourself.
Poinsettias are very well-known toxic plants. They say if you have dogs or cats, DO NOT get a poinsettia plant around Christmas, because it's toxic to them. But the truth is, in order to be affected by it, they have to eat an entire plant - plus roots. The same goes for parsley and spinach. They can nibble here and there. But as long as they have other options, they'll likely avoid it if it's not good for them. They might get an upset tummy (okay, upset crop) by eating it, and just not want it again.
And I've tested that theory on my cats. I have a little grass pot inside, and I've bought poinsettias before. They tore the heck out of the grass every time it was out, but never touched those flowers. Nature has it's way of taking care of us. That's why no plant is really toxic until we/they consume a lot of it. But most times, the taste will be a good deterrent after that first nibble doesn't sit right with them.
