| Height | 36" | 
|
| Spread | 18" |
| Form | upright |
| Texture | grass-like |
| Flower color | -variable -purple -yellow |
| Leaf color | green |
| Time of bloom | May-June |
| Light requirement |
full sun-part shade | 
|
| Soil requirement |
moist, humusy |
| Propagation method |
division -infrequently |
| USDA Hardiness Zone | 3-9 |
| Peculiarities/Problems | |
| Uses | -back of border -wet sites |
| Comments | sensitive to division -often clumps die back in center divide -replant immediately |