SILPHIUM LACINIATUM - COMPASS PLANT, (WELL ROOTED PLANT IN A 2 1/2 X 3 1/2 INCH POT) - ZONE 3-8 PERENNIAL GROWING TO 5-9 FEET TALL - FEATURES IN SUMMER SUNFLOWER LIKE FLOWERS TO 5 INCHES WIDE WITH YELLOW RAYS AND YELLOW CENTER DISKS.  VERY LARGE, DEEPLY PINNATIFID BASAL LEAVES TO 18 INCHES LONG -- UPPER LEAVES ARE SMALLER. BEST GROWN IN MOIST, ORGANICALLY RICH WELL DRAINED SOILS IN FUL SUN.