Plants are usually biennial, but may last a third or fourth year, especially if you remove flowers. Some sources list as a short-lived perennial.
3 to 6 feet
2 to 4 feet
Blooms usually start in June and last through July.
Greenish-white to greenish-yellow.
Leaves form a basal rosette the first year and then fine textured flower stems rise above the foliage the second year.
Shape in flower:
same as above