I tried soaker hoses, but I am on hard well water, and the hoses clogged up within 2 years from all of the minerals in the water.
Here in zone 4 WI, we almost always have a rainy June, so I rarely water at all in June. I do water the rest of the summer as needed. but just one by one with a hose (which can take a long time), or occasionally with an overhead lawn sprinkler if I dont have the time.
As they get large, they do love water. I am under the impression that short waterings more often is best for them, they dont have extensive deep root systems (like tomatoes etc) so deep watering is a waste on them.