Not Isolating Heirlooms and Saving Seeds?
I enjoy growing a variety of different tomatoes in my small garden. This year 18 plants that are 9 different varieties, mostly heirloom. Is it a waste of my time to save the seeds from let's say my Cherokee Purple because they may have cross pollinated with the other varieties? Should heirloom plants be isolated if you are going to save seeds? What is accepted practice for those gardeners growing heirlooms and saving seeds?
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