Because of our growing season I look for plants that were developed for the area, or varieties that while not specifically developed for here have been proven producers. Back in the late 1800's and early 1900's there were several seed companies around SE MI. The most famous is probably D.M. Ferry, now part of Ferry-Morse. Of course back then the world was a bigger place and pretty much everything was handled locally. Some of the seeds I've grown are Chicago Pickling Cucumbers, Wisconsin Lakes Sweet Peppers, and Beaver Dam Hot Peppers (great for traditional paprika!). One of my favorites is the Early Detroit tomato. This is one of the tastiest tomatoes I've had, and are pretty crack and disease resistant for an heirloom. This year (seems like I've planted it before, but it would've been long ago) I'll try the Early Fortune Cucumber, which originated in Royal Oak MI. Seems like there was also a pickling cucumber from the area, and I recently ran across a more recent one called Michigan Wonder, a bell pepper descended from the California Wonder, but a bit smaller and needing a shorter season. What do you grow specifically for your area?