blue cardinal flower

Plant in deep, fertile, reliably moist soil in sun or partial shade. Feed every 2 weeks with a balanced liquid fertilizer until midsummer and a low nitrogen fertilizer for the remainder of the growing season. Protect the crown of the plant during winter with a thick, dry mulch

Cut down faded flower spikes in autumn

Propagate by division of large clumps of plants every second year in the spring

May be susceptible to slugs

May be susceptible to crown rot and a virus