Trev the reason I water so infrequently is because of my sun intensity in my zone 6 is our sun is not as intense in a more moderate climate. We are also more humid. In our zone and air difference once a week if it is not in the 80s and in direct sun will rot succulents.
Once a week is going to be too much. The nursery have them growing indoors. To add to the problem that she is having is they are talking about bringing closer to the window inside a store that is probably air conditioned. They are in the condition of the succulents I pick up from lowes for a 1.00. They are inside the store probably air conditioned and being watered in that peat based nursery tiny pots drowning and chocking to death. They are not in a well drained soil, no sun or warmth to even make them want or need a drink of water.
Ken I am no where near an expert. I am the one growing them in pots with out drainage. I send everyone into panic when I say that. But it is the only process I have discovered help my plants to survive with my non-watering habit, my love of combo pots and every other no, no in growing succulents. I just break all the rules.
I am only regurgitating what every one have said to beginners of how o grow them.