hello and about earthworms

So I am new here. Living in the Rocky Mountain Foothills in Loveland, CO for about 9 years now. Been getting our permie home going for a while now with mostly success.Have a question about earthworms. Have an earth battery greenhouse which I love. Am older, so beds are raised up, not right on the ground. Would like to introduce earthworms to my beds. Don't see why this wouldn't work as they can go as high or deep as they like. As anyone done this?

Introduced worms will work fine.  They may migrate in or out depending on how you built the beds.  However, as long as they are fed (can feed themselves on a healthy biome) they will thrive.  What soil is in the beds?  How long has a living root been in that bed soil?  Are you using a lot of chemical fertilizer?  

Welcome to Permies!  Pull up a chair and have a cup.  The conversation is good.

So the original soil was topsoil and compost from a local landscaper. Has had plants growing in it for about 6 years and I envision burying stuff in the soil instead of putting it in the compost heap. Have a permanent herb bed at one end, mix of vegies throughout the rest. Very few chemical fertilizers in the soil - mostly fish emulsion or organic. Beds are waist-high and just go right into the ground. So I am thinking some kind of earthworm would be best, rather than the red ones that are used for vermiculture, or am I wrong?

Not wrong at all.  I think you are spot on.  The soil sounds healthy and tox free.  You have living plant roots to sustain the food source for the worms.  Nothing wrong with red wigglers, but (my understanding) they excel at breaking down and composting.  Earthworms are best at fertilizing the soil with the excreta.  Adding them to a healthy environment can only be a positive thing.  

Sharon, worm towers are a great addition to raised beds and garden beds.  

I use empty 1-gallon plastic pots that already have holes in the bottom, sink them in the soil until about 3-4 inches is above the soil level, fill them with kitchen scraps, and the worms will come and go from them.   I have improved watering the beds by filling the kitchen scrap bucket with water, in addition to the scraps just before filling it in, and the beds also get watered that way.  

If you want to add one other feature to a raised bed that is handy, if we use rotted wood scraps (no treated wood), that have been soaked in water overnight, place them at the bottom of the raised bed, fill back with soil over the tops of them, they will hold moisture under the soil, will continue to rot and improve the soil over the years.  It is a mini-Hugel trench.

Or just scraps and worms work well.  (can't seem to upload a photo, but search on worm tower and you'll see lots of examples using pots, or wide PVC pipe drilled with holes.  A lid over the top like a heavy pot saucer, or another pot with a brick or rock on it keep critters out, lots of options)