I wouldn't feed them anything you can't trace back to know for certain it wasn't sprayed. That was poor English, but you get the drift. I'd just use plants in your yard or in wild fields or roadsides.

Martha

You can never trust plants you buy from places like Lowe's, Walmart, and Home Depot. It's better to raise your own from seed, or, if you buy from a nursery, make sure it's a nursery that raises their own. If you ask an employee at say, Lowe's, they'll either say no, they're not sprayed (they didn't, but the nursery they bought it from probably did) so asking won't get good answers.

Sherry

I should count my blessings...
I get all my plants from no spray booths at the Farmers' Market. I pay more, but I have the security that my cats won't die an untimely and needless death.
I find it easier to deal with garden centers that raise natives. They aren't as apt to use pesticides.

John