A couple of friends have had upsetting experiences with parsley they bought. A couple of plants were bought at a big box store's nursery, and the other friend got hers from a produce vendor. In both cases, the swallowtail caterpillars that transferred over to the new plants (as they had just about eaten up the other parsley), died before the end of the day. So be careful, and buy your plants only from a reliable nursery. What is also disturbing is that parsley, that was obviously sprayed, is being sold for humans to eat. I will only buy my plants from a certain nursery as I know the plants are safe. more than likely even the flowering plants have probably been sprayed. if this is happening all over, no wonder there is a decline in butterflies and bees.