Beginner Gardening: Earthworms for a raised table bed, 1 by Suzy_Bee

Suzy_Bee wrote:
My husband and I are building a raised table bed that will stand on legs about four feet off the ground. While we have earthworms in our soil at ground level, I'm not sure if they will take the hike up that distance to our new beds. Should we try to recruit some of our residents for a high-rise relocation, or would it be better to buy some new wormies? What kind would you recommend?

We live north of Houston, in zone 8b, where the average temperature is 66 degrees.