The Garden Bug: Planting mums
By Brenda Weaver
The difference between "garden" mums and "florist" mums is their hardiness. "Florist" mums are sold from grocery stores and flower shops, useful only as indoor potted plants for seasonal decor and won't survive a winter if you plant them outdoors.
"Garden" versions are sold from nurseries as tough perennials meant for outdoor landscapes year round.
Source: www.hgtv.com