Why thank you Piffy for the compliment. I am still learning a lot about how how to grow things in this climate.
Steamboater what kind of conditions were your mint and oregano in, like sun/shade, wet/dry, bare dirt in the vegetable bed or in a mulched soil?
I am at 4000 ft elevation. It gets cold! The mint, oregano and thyme are all reliably hardy. They are growing in what is in essence a wildflower meadow where the dried plant remnants and blown in leaf litter cover the soil during the winter. This cover will mitigate freeze/thaw cycles and frost heaving that can lift plants and roots making them more susceptible to winter kill.
I have not tried yet, but you should be able to grow asparagus just fine here. Good garden soil will be just fine. It does not need boggy conditions.