Thyme, irish moss, sand or sun tolerant moss between pavers
We are completing our hardscaping, and we will have somewhere around 500-700 SQ of cobblestones (>1000 stones!yikes). I had planned on putting either irish moss, or thyme in, but then came across sun tolerant moss. And then I did the math, and thought, wow, that is a lot of cracks to fill and more importantly to weed. We need to have the water drain, so impermeable sand is not an option. Which of the four options would be the lowest maintenance? I'd appreciate anyones' thoughts on the beauty v. maintenance of thyme v. irish moss v. sun-tolerant moss v. permeable sand. I have big gardening dreams, but have a full time job and a toddler.