It does make a nice clump very quickly!
I started with a nice piece of this plant late last season, and by late spring of this year you'd never have guessed it was a new plant. Mine were planted out with just a shovelful of compost, grew strongly upright scapes in full all-day sun, and during this good rainfall year required no additional fertilizer and very little care from me. Lots of blooms that hold their color well...great landscape plant!
