Arkansas ironweed 'Mammuth'

Cut back the old stems before onset of new growth in spring. Deadhead if self-seeding is a problem It will tolerate most soil types, but prefers rich, evenly moist soils in full sun or light shade. Mulch soils prone to drying out in summer

Cut back the old stems before onset of new growth in spring. Deadhead if self-seeding is a problem

Propagate by division in spring

Generally pest free

Generally disease free