Wow, that's a nice clump of arachnids. So well behaved.
I'm wondering about pruning practices for the more spreading cultivars. Let's say I devote a 1.5 square foot zone (15"x15") for one plant. If it ventures out of that zone then SNIP, SNIP! And even within the zone maybe some space could be freed up by selective chick removal (murder!).
In gg5's pictures above there's obviously some plants running out of space. They look really good. I'm wondering if some chick removal will soon be required to keep it healthy and attractive.