Just wanted to post a quick update. The green sedum around my pool did produce a lovely, yellow, starry bloom. It reminds me of a Bob Ross painting, where he'd take the brush and just tap it across the canvas. Not concealing the ground cover, but more like icing. As if the green mounds of lacy edged foliage was not good enough, I got a bonus round. I especially like how in this photo you get to see how it has draped itself across the lower rock staircase. And, as you can see, I have plenty to share, if anyone would like a start.