Maintenance
Pests to watch out for include the PCI borer (Amphipoea americana var. pacifica), which infects the rhizome. Dig out and remove infected plants entirely; dispose of in sealed plastic bags.. Old leaves should be removed.
1, 2*, 3*, 4*, 5*, 6*, 7*, 9*, 10, 11, 14, 15*, 16, 18*, 19, 20, 21