produce mystery

There's a season for oranges, apples, pears, cherries, berries, tomatoes, squash, asparagus, beets, lettuces, pumpkins, parsnips, and avocados.

There appears to be NO SEASON for bananas, lemons, limes, kales or chard, potatoes, peppers, onions or garlic.

It's not just that the prices don't fluctuate like those of true seasonal produce.

It's that there is no time of year that these pieces of produce are reliably better or worse.

I think it's the Freemasons. Discuss.