Who can say with "gophers?" They'll even chew (or try to chew) on tomato plants - not the most palatable or non-toxic.

Spring or fall when it is moister and cooler is the time I try to do most of my transplanting but you can always try now. Give them a little TLC just until the plants are good and set - but not too much TLC since many an herb has been killed by "kindness."

Oregano is virtually non-killable and would probably not be affected much by the transplanting. You can start with that one, if you wish.

FataMorgana