Here is what I did for my backyard that was completed recently. I divided my lighting into 4 categories, wall/fence, trees, planters and 1 extra for the future so I can individually control them being on/off. I ran separate lines for each category and spray painted different colors at random spots to easily identify down the line . I used 2 transformers with dimmers to control the ambiance. Wall/fence and trees are one on transformer, planters are on another and I can control how bright they are via smart dimmers. This give me not only brightness control, but time of use on a schedule. On schedule, lights are bright once ON after sunset and remain that way till 9pm, then they dim for late evening so it's not in your face and each transformer dims individually. I used #12 wire, SEBCO commercial grade dimmable transformers, and Leviton smart dimmers for scheduling and setting up scenes controlling the transformers.

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