So How much water?
Usually when the first inch or so of soil is dry, it’s a good indication that watering is needed. In summer, watering outdoor potted plants is necessary daily (and even twice a day) for most species, especially when temperatures reach over 85 degrees
So I usually water daily but lately we have had rain so less to water.
Now I am not much of a gardener but My grandmother & parents have great gardens. Now that my parents are getting older we usually plant lots of Bulbs & Seeds and let Nature work .