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PlantSnap
Plant Care
Pretoria canna
(Canna pretoria)
Also Known As
Pretoria canna, African shield, Canna lily
About This Plant
Canna pretoria is a species of flowering plant in the family Cannaceae, native to South Africa. It is a tall, herbaceous perennial plant with large, glossy leaves and showy, bright orange flowers. The plant grows from rhizomes and can reach a height of up to 8 feet (2.4 meters).
Plant Care Instructions
Outdoor Size Range
48-96 inches (122-244 cm)
Light Requirements
Canna pretoria requires full sun to partial shade, with a minimum of 6 hours of direct sunlight per day.
Humidity Needs
Canna pretoria prefers moderate to high humidity levels, between 40-60%. Use a humidifier or place a tray of water near the plant to increase humidity.
Fertilizing Schedule
Fertilize every two weeks during the growing season with a balanced fertilizer. Reduce fertilization in the winter months.
Pruning Guidelines
Remove dead or yellowing leaves as needed. Cut back the entire plant to the ground after the first frost in the fall.
Common Pests and Diseases
Canna pretoria is susceptible to spider mites, aphids, and thrips. Treat with insecticidal soap or neem oil.
Indoor Size Range
36-48 inches (91-122 cm)
Watering Schedule
Water regularly to keep the soil evenly moist, but not waterlogged. Allow the soil to dry out slightly between waterings.
Temperature Range
Canna pretoria prefers warm temperatures between 60-80°F (15-27°C). Protect from frost and freezing temperatures.
Growing Season
Canna pretoria grows best during the summer months, from late spring to early fall.
Growing Difficulty Level
Canna pretoria is moderately difficult to grow. It requires consistent watering, warm temperatures, and protection from frost.
USDA Hardiness Zones
Canna pretoria is hardy in USDA zones 8-11.
Did You Know?
Canna pretoria is not only grown for its beautiful flowers, but also for its edible rhizomes, which are used in traditional African cuisine.
