Canna ‘Pretoria’

Canna 'Pretoria' is commonly sold as 'Bengal Tiger' or 'Striata', although cultivar naming can vary among nurseries. These names generally refer to the same striking yellow-and-green striped canna.

Canna 'Pretoria' grows best in full sun, ideally with at least 6 hours of direct sunlight daily. Strong light helps maintain its yellow-and-green foliage and supports flowering.

Water Canna 'Pretoria' whenever the soil surface begins to dry, keeping the soil consistently moist but not permanently saturated. Plants in containers may need watering more often during hot weather.

Canna 'Pretoria' typically grows about 4 to 6 feet tall in good conditions. Height varies with climate, soil fertility, moisture, and whether it is grown in the ground or a container.

Yes, Canna 'Pretoria' grows well in large containers placed in full sun. Use a heavy, stable pot with fertile, moisture-retentive but well-drained soil because the mature plant can become top-heavy.

Yes, Canna 'Pretoria' tolerates consistently moist conditions and can be used near ponds or in water gardens. Keep the rhizome and soil moist rather than permanently submerged unless the plant is specifically adapted to that setup.

Canna 'Pretoria' can remain outdoors year-round in many USDA Zones 8 through 10 locations. In colder zones, grow it as a summer plant and lift the rhizomes before freezing weather.

Canna 'Pretoria' can tolerate some afternoon shade, especially in very hot climates, but full sun usually produces stronger growth and better flowering. Too much shade can reduce blooms and make the stems weaker.

Plant Canna 'Pretoria' in fertile, moisture-retentive, well-drained loam or sandy loam. Avoid soil that stays waterlogged because constantly saturated conditions can encourage rhizome rot.

Brown leaves on Canna 'Pretoria' are commonly caused by drought, hot drying winds, low humidity, salt buildup, or frost damage. Keep the soil evenly moist, protect the plant from harsh wind, and remove badly damaged foliage.

Canna 'Pretoria' may fail to flower because of insufficient sunlight, a short growing season, drought, transplant stress, or excessive nitrogen fertilizer. Give it full sun, steady moisture, and a balanced or bloom-focused fertilizer during active growth.

Wilting in wet soil may indicate root or rhizome damage from poor drainage, excessive saturation, heat stress, or disease. Check that water drains freely and inspect the rhizome for soft, dark, or foul-smelling tissue.

Canna leafrollers, caterpillars, Japanese beetles, aphids, and spider mites can damage Canna 'Pretoria'. Inspect rolled leaves and the undersides of leaves regularly, then remove pests or damaged foliage promptly.

Feed Canna 'Pretoria' with a balanced fertilizer or a fertilizer higher in potassium during active growth, following the product label. Fertile soil and regular feeding support its tall stems, colorful foliage, and orange flowers.

Yes, remove leaves that are badly torn, diseased, yellowing from age, or heavily chewed. Leave healthy green leaves in place because they continue supplying energy to the rhizome.

Plant Canna 'Pretoria' outdoors after the danger of frost has passed and the soil has warmed. In colder regions, start rhizomes indoors several weeks earlier to extend the growing season.

Plant Canna 'Pretoria' rhizomes about 2 to 4 inches deep, with the growing points facing upward. Space them roughly 12 to 18 inches apart, allowing additional room if a broad clump is desired.

Yes, Canna 'Pretoria' performs well directly in the ground when planted in fertile soil with reliable moisture and good drainage. Choose a sunny position where its mature height will not shade smaller plants.

After frost blackens the foliage, cut the stems back and lift the rhizomes before the ground freezes. Let them dry briefly, then store them in slightly dry peat, vermiculite, or similar material in a cool, frost-free place.

Canna 'Pretoria' is frost-tender and its leaves and stems are damaged by freezing temperatures. A light frost may kill the top growth, while prolonged or hard freezes can kill unprotected rhizomes.

The most reliable way to propagate Canna 'Pretoria' is by dividing its rhizomes. Separate healthy sections with at least one visible growing point, then replant them in warm soil.

Canna 'Pretoria' is usually propagated by rhizome division because seed-grown plants may not remain true to the parent cultivar. Seed production and fertility can also be low or inconsistent in named cannas.

Divide Canna 'Pretoria' in late winter or early spring before new growth becomes vigorous, or after lifting the rhizomes for winter storage. Ensure every division includes a healthy bud or growing eye.

Deadhead spent flowers to improve the plant's appearance and encourage continued flowering. Cut the entire plant back only after frost or when preparing frost-tender rhizomes for winter storage.

Canna species are generally listed as non-toxic to dogs and cats, but cultivar-specific safety data for Canna 'Pretoria' are limited. Prevent pets from chewing large amounts of any ornamental plant and contact a veterinarian if symptoms occur.

A definitive cultivar-specific human toxicity profile for Canna 'Pretoria' is not well established. Treat the plant as ornamental, do not consume it, and seek medical advice or contact Poison Control if plant material is swallowed.

Canna 'Pretoria' produces vivid orange to melon-orange flowers above its striped foliage. Flower color may vary slightly with growing conditions and the plant's individual clone.

Canna 'Pretoria' generally blooms from mid-summer into early fall when it receives enough warmth, sunlight, water, and nutrients. In cooler climates, flowering may begin later or be limited by the first frost.

Canna 'Pretoria' is valued for both its orange flowers and its highly distinctive yellow-and-green striped foliage. Its foliage often remains the main ornamental feature even when flowering is delayed.

Reduced striping can result from low light, stress, or the appearance of a reverted green shoot. Move the plant to brighter light and remove completely green shoots if they grow more vigorously than the variegated growth.