bisjoe

With the size of those pots, and your climate this time of year once a day is too much. If they were planted in all non-organic grit like turface you could water 2-3 times a day and they would be fine, but yours appears to have some organic components that will hold too much water in the root zone.

As long as it's in the 70s or below you should be able to go 2-3 days before watering.