Canna Stems Collapse After Trimming Dead Foliage: Cut Back and Feed

A first-time canna grower trimmed dead foliage at the base; now stems and leaves fall over. Asked if trimming was wrong, how to fix, and if plant will recover.

Remedy

Tom said he rarely trims cannas unless a leaf is truly dead, and cautions against cutting too close to the main stem. If the plant is collapsing, the main growth was likely damaged. Cut it back to ground level and let the rhizome send new shoots. Cannas are heavy feeders; apply all-purpose liquid fertilizer, fish emulsion, or Miracle-Gro per package directions. The canna should recover.

Aggressive trimming can damage canna crowns; hard cutback and feeding stimulate fresh growth.