The more information for gardeners the better. The "go to" list for me is a very extensive effort you can find at
http://tatianastomatobase.com/...
Tatiana has put in many, many hours assembling her site. Give it a look and see if you can get some ideas how to put a spreadsheet together. It just so happens she also sell seeds of all sorts. A very good person with very good product and excellent customer service. This is the Tomato Bible so far as I am concerned.
Sandy, you just have to get old for a list to become extensive...and I am a list nut.