Petasites hybridus (Butterbur)

Zone: 6 - 9
Natural Range: Europe
Soil:  Moist - wet, humus rich
Light:  Part shade
Attributes:  Deciduous, 2' - 6' tall.  Strange frilly white blooms with red - pink bracts late in the winter to early spring.  Grayish, round foliage emerges in the spring, and lasts until fall.
Notes:  Petasites hybridus seems to take a bit more sun than some of the other Petasites.  Give them pleanty of room to grow.  They do well with lots of bright light, but shade them from the hotest part of the day.  They may wilt in a too hot of a spot but if their roots are keept moist they will bounce up once the day has cooled.