Hi, I lived in MN and we used to have a Garden Club sale every summer. As I recall, we had it in June and everybody brought in excess plants (donation). We had an auction and it turned out to be a lot of fun and very popular. If you belong to a very large church, an auction probably would be difficult. You can lay them on tables or on the ground, for that matter. We also ordered starter, standard container plants from a wholesaler to sell at set prices. Since most plants were donated, this was a good fund raiser and we then provided and planted for local nursing homes, etc with some of our profits. A suggestion is to keep your plants priced cheap so the word spreads. All perennials sell well and you are only limited by your imagination. We sold everything from bunching onions, iris, daylilies, rhubarb, lupines - you name it. Since we sold bareroot, it was easy for people to dig and bring. Buyers did not have to shuffle pots.

My sister has wonderful luck selling African Violets at her church sale. She has a grow light and starts the plants from leaf cuttings. I used to think they were very hard to grow but once I tried it realized they weren't. She puts two to five dollars depending on size.