Acquired 3 fans of Spiny Sea Urchin in August 2015 that I potted up. I later transplanted into a new raised bed in October 2015.
It bloomed for me this year (July 22, 2016). It produce a scape from each fan. Unfortunately, the scapes each produced a whimpy 2 buds each.
The fans are small and tend to be prone to thrip damage and some rust damage. The blooms were small on short scapes. I would like to think that the stats will improve with time?
Here are the stats:
Blooms (it's definitely got some gnarly teeth on the blooms):
And this is the whimpy fans. I am surprised it even produced scapes much less 2 blooms each. Geez!
It is now Fall 2016 and the fans still look teeny and whimpy. BUT .... and this makes me laugh .... it now has increased to 3 small, pathetic fans!
But I do love the blooms despite it's poor foliage growth. Maybe it will have the last laugh and eventually turn into a vigorous clump with great foliage that is loaded with blooms?!!!