Canna iridiflora thrives in consistently moist soil. Water deeply whenever the top 2-3 cm of soil feels dry. Avoid waterlogged conditions, which can lead to root rot.

During prolonged dry spells, increase watering frequency. Ensure good drainage to prevent issues, especially in containers.

Remove spent flower stalks to encourage more blooms and maintain a tidy appearance. Cut back any yellowed or damaged foliage as needed.

In autumn, after the first frost, cut the entire plant down to the ground level to prepare it for overwintering. Rhizomes can be left in the ground in suitable climates.

Peruvian Canna is primarily propagated by dividing its rhizomes. In early spring, carefully dig up the rhizomes and divide them into sections, ensuring each piece has at least one bud.

Replant the divisions in well-draining soil, about 5-10 cm deep. Water thoroughly after planting.

Repot Canna iridiflora annually or every two years, preferably in early spring before new growth begins. Choose a pot that is only slightly larger than the current one. Ensure the pot has adequate drainage holes.

Use a rich, well-draining potting mix. Water well after repotting.