Welcome KJ!
Although I've seen maps that show that the Ozarks region stretches up almost to St. Louis, we rarely have someone post from that area in this forum. There's a forum for gardening in the Midwest. You may want post a question there to find other gardeners in the St. Louis area but I will warn you - It's not a very active forum.

The information that you find in the Ozarks forum will still be very helpful to you and you're certainly welcome to join in. St. Louis is in zone six like southwest Missouri isn't it? So our winter low temperatures should be similar and I'm sure your summers are hot like ours as well. It took me awhile to figure out that zone six gardeners along the coast have much milder summers and some of the plants they recommend can't stand our summer heat here.

I think there's a display vegetable garden at Missouri Botanical Gardens in St. Louis. Here's a link but it doesn't tell very much about it.

Here is a link that might be useful: Bank of America Family Vegetable Garden

Yes, welcome KJ.

You might be able to get more of a response in the Midwest Forum of GardenWeb which is where many more St. Louis dwellers hang out. Here is a link to many threads specifically regarding St. Louis:

Here is a link that might be useful: Browse St. Louis Threads

Thanks for the responses guys. I'll be sure to check out the Midwest forum!