Yet another reason to grow your own.
(I was planning to expand my oregano patch anyway.)
On a more cheerful note, Rocky Mountain Seed Alliance has an incredible selection of grain seeds available. Including perennial varieties of wheat, oats, and rye.
https://rockymountainseeds.org/product-category/anche/
They even have Kernza, the perennial wheat that’s been getting headlines lately. But unlike Kerza.org, RMSA doesn’t require you to register while promising everything short of your firstborn child in order to buy seeds!
(They have other perennial wheat varieties, too. Not just that one.)