Karen, I really go anywhere but only occasionally to big box stores. I go to both the Friends School plant sale and the Hennepin County Master Gardener's plant sale every year. I often visit a seasonal vendor called Untiedt's. They have two locations with about 5 miles of me. For nurseries/stores I like Bachman's, Wagner's, and Tonkadale. For specialty or unusual things I like Venero Gardens, but this will be their last year in business. If you have never gone there, you should go to see it. It's in Excelsior and they have the most stunning gardens I have ever seen. Maybe once a year I make the trek to Mickman Brothers. And of course my neighborhood annual plant sale. Insanely low prices, stuff that is local so you know it will work. If you are interested, let me know and I will email you with the particulars. You probably need more plants