I've been looking for the best deals on Mums for fall, and I've only been to a few different stores to check prices. So far, this is what I've got:
Costco $10.99 for a big pot of mums ( 14" i think ? ) ( *edit* my local Costcos have sold out and are not restocking. SAD )
Safeway $9.99 for 3 small 4" pots
Home Depot $3 for 2 small 4" pots ( they are really small here )
Winco $3.48 for a small pot
So, if you would, contribute to this list and comment below. Maybe you've seen them somewhere else and cheaper? Obviously Costco is your best bang for the buck here.