I have access to a quarry's scrap sandstone rocks that typically have at least one flat side and are about four to eight inches thick. They are otherwise irregular. I lay these down like a patio leaving abundant planting gaps where the irregularly shaped rocks don't fit together. I backfill with sandy loam soil.
I had also been missing the flowers of my fall blooming crocus (Crocus kotschyanus)(above) from this garden but it appeared in good blooming order this year. I saw the spring leaves but have had problems in other gardens losing track of these little plants in mid summer after the leaves disappear. I think in this case the flowers were obscured by floppy bordering plants such as the Japanese anemone seen here. I have since beaten them back.