We bought super realistic Astro Turf from the flower market ($125 worth) and used it to make a rug! The rug is weatherproof, has drainage holes, and is designed to be outside so we have no worries about that, and it’s actually cheaper than a lot of outdoor rugs. We had to have one seam, but it was pretty easy to deal with, I used a strip of left over outdoor fabric, and silicone caulk as glue to back the seam and hold it all together. You can still see the seam a little bit, but it is actually getting better all the time, as the pile relaxes from being rolled up, and is sitting more naturally.
I guess cleaning wise I will probably vacuum it or something, but either way I love it!!! Korean’s really don’t do grass (they farm peppers for kimchi in all little bits of land, (except ancestor burial areas,) and it’s probably not a great idea to play in that grass) and the grass on base is all dog territory, so not very tempting to stand barefoot on! I got a wild hare when I saw this grass was so reasonably priced at the flower market, and I knew I had to have it!
I only have a couple of things left on my list before the patio is finished, I am looking forward to all the warm weather we have coming up, so that we can actually use the patio!