I decided to try two new plants this year, sweet potatoes and collard greens. I always thought of them as southern crops but they apparently do very well here in Massachusetts. Before planting the sweet potatoes, I dug a trench on the south facing slope of the garden and replaced the high clay soil with a loam/sand/compost mix. This is the preferred soil for sweet potatoes so we’ll see how they do. Sweet potatoes are a better alternative to regular potatoes which they are not really closely related.
Collards are a member of the brassica family like kale, cabbage and broccoli and like them full of health benefits. Apparently, conventional production results in pesticide contamination and while not in the worse category levels are high enough to be of concern. We use no pesticides or chemical fertilizers. Our leafy vegetable might have some insect damage but its because the benefits of allowing for an ecological web far outweigh the disadvantages of becoming a slave to the toxic chemical paradigm.
Most of this Kale (red Russian) was self seeded last year when I was trying to see if I could get a second year out of the kale plants that survived the previous winter.