1. Home
  2. Question and Answer
  3. Houseplants
  4. Garden Articles
  5. Most Popular Plants
  6. Plant Nutrition

Dividing & Storing Canna 'The President' in Iowa Zone 5a

Canna 'The President' produces smaller rhizomes than common varieties. In Iowa (Zone 5a), lift after frost with this tailored method:

Lift & Cure

  1. Cut stalks to 6 inches.
  2. Dig clumps, stand upright in dry, cool (45–50°F) basement for 4 weeks.
  3. Stalks dry further; cut off additional 4 inches.
  4. Store rhizomes in plastic trays or mesh bags with air circulation at 45–50°F.

Dividing Small Rhizomes

  • Don't over-divide. Each piece needs a visible bud (eye) and some root tissue.
  • Pot up tiny divisions in spring for a year of growing on before garden planting.
  • Accept some loss—small pieces have lower survival.

Growing Better in Zone 5a

  • Black mulch to warm soil early.
  • High-phosphorus fertilizer (5-10-10) for blooms, not nitrogen.
  • Consistent moisture—cannas love heat + water.

Patience with 'The President'—it's worth the extra care for those huge red flowers.

Copyright © www.100flowers.win Botanic Garden All Rights Reserved