A full porch all summer, with none of the daily watering
By July, real porch flowers turn into a daily job. You water them every morning, and in a heatwave they still wilt by the afternoon. Leave for a week and you come home to a dead planter. These fill the same pots and stay full and colorful through the hottest weeks, and every week after that.
Set them out once. That is the last time you think about them.