I was wondering if anyone knows which heirloom varieties date back the furthest. Any links would be helpful. I want to turn my garden into an ancient garden, using the oldest varieties I can find.
Certainly the oldest domesticated varieties are going to be centered in Central Mexico (annums), Northern Amazonia (chinense), and Bolivia/Peru (baccatum/pubescens). But I'm pretty sure that the consensus on domesticates is that there is no consensus.
I'd go for chiltepins.