beautyberry follow up
Later in the day, Mossy Oak Nativ Nurseries returned my call and reassured me the beautyberries can be okay. Dudley prescribed daily watering for the first week, every other day for a week or two, every third day for a week or two, then every fourth day. This is to coax the roots to reach on out without getting dehydrated first. After that they shouldn't need irrigation except in drought conditions.
And they should have plenty of time to acclimate before first frost.