Petasites frigidus var. palmatus is a broadleaf deciduous perennial groundcover aquatic perennial with green foliage. In spring white flowers emerge. Grows well with bright shade - shade and even moisture - high water. Does well in average, clay and rich soil. CHARACTERISTICS OF Petasites frigidus var. palmatus Plant type: perennial groundcover aquatic perennial Plant family: asteraceae Foliage: deciduous green Mature size: 5 FT - 15 FT - wide, 1 FT - 3 FT - tall Flowers: white blooms in spring GROWING CONDITIONS for Petasites frigidus var. palmatus USDA Zones: 4a - 9b Sun exposure: bright shade - shade Watering frequency: even moisture - high Soil needs: average, clay and rich