The plant here is a native New Zealand plant, Scleranthus biflorus - or we could have used S. uniflorus, I can't recall - but they are both very similar.Neither will take much shade, they are a plant of riverbeds and semi-alpine areas and require an open, sunny situation with good drainage - or they grow more and more open/shaggy, and then rot and die. A better choice for a shadier area would be Irish Moss (arenaria aurea), it looks very similar, just a richer green and not so mounded, more a flatter sheet, and a softer plant.If you can find a suitable spot for Scleranthus plant it with the top 1/2 in a gravel or pebble mulch, not soil. This replicates it's normal habitat and avoids the risk of it rotting from below. Good luck!