Sunlover to the Semp Side of ATP! Thanks for sharing with us some of your beauties.
Your new acquisition (looks to be a sort of arachnoideum-type of semp) can be handled any way you choose depending on whether you want to add a fuller look to some spot in your garden, in which case you can plant entire clump into the ground or want to scatter that green-hairy accent look in different spots.
I don't know what your conditions are like but to be on the safe side you can separate a few of the new semps from the clump, pot them up in a couple of pots and see what spot in your garden these can acclimate easier to. Here in my zone 9b and in my semp bed located under a wall of windows which reflect a lot of sunlight and the afternoon sun tends to bake my arachnoideum-type semps so moved them and planted them behind rocks that offer shade or in spots that offer a little protection in the afternoon.
Your rock garden spill of semps look to be of the tectorum type and they look beautiful and healthy!
