Red-leaved canna (Canna australis) is a tropical aquatic plant known for its dark reddish-brown foliage and vibrant red flowers. Growing approximately 3–5 ft (0.9–1.5 m) tall, it makes an attractive background plant for ponds, bog gardens, and container water gardens.
Growing requirements
- Sunlight: Full sun for optimal growth and flowering.
- Water requirements: Prefers consistently moist soil and tolerates shallow water conditions.
- Growth rate: Moderate.
- Height: Approximately 3–5 ft (0.9–1.5 m).
- Foliage: Large, dark reddish-brown leaves.
- Flowers: Bright red blooms that attract hummingbirds and butterflies.
- Placement: Suitable for pond edges, bog gardens, container water gardens, and consistently moist garden beds.
Winter care
Red-leaved canna is frost-sensitive and requires winter protection in colder climates.
- In USDA Hardiness Zones 6 and colder, remove the plant from the pond before freezing conditions.
- Store the rhizomes in a cool, frost-free location during winter.
- Replant outdoors in spring after the danger of frost has passed.
In warmer climates, red-leaved canna may survive outdoors year-round when protected from freezing temperatures.