Do NOT, and I repeat do not buy plants treated with Neonicotinoids.   Bees take the pollen back to the hive and feed it to the brood. This is a number one cause of the colony collapse.
Neonicotinoids are mostly banned in Europe! It’s important to NOT buy these plants!

For more information: https://xerces.org/sites/default/files/2018-05/16-023_01_XercesSoc_ExecSummary_How-Neonicotinoids-Can-Kill-Bees_web.pdf