Canna lily (Canna ‘Picasso’)

Canna 'Picasso' is commonly sold as a canna lily or Picasso canna. It is a rhizomatous ornamental perennial grown for yellow flowers marked with red spots.

Canna 'Picasso' performs best in full sun, ideally with at least 6 hours of direct sunlight daily. Some afternoon shade is acceptable in very hot climates, but too much shade can reduce flowering.

Water Canna 'Picasso' whenever the soil surface begins to dry so the root zone stays evenly moist. Do not let the container or planting bed remain waterlogged, especially in poorly drained soil.

Canna 'Picasso' commonly grows about 3 to 5 feet tall, although height varies with climate, fertility, and growing conditions. Some nursery listings describe it as a dwarf canna, but mature size is not completely consistent among sources.

Canna 'Picasso' produces bright yellow flowers marked or spotted with red, giving the blooms a leopard-spotted appearance. The green, paddle-shaped foliage provides a contrasting tropical look.

Yes, Canna 'Picasso' grows well in a large container with fertile, moisture-retentive but well-drained potting mix. Choose a heavy pot with drainage holes because mature plants can become top-heavy.

Canna 'Picasso' tolerates consistently moist soil and can suit a pond edge or other wet garden location if the rhizomes are not permanently submerged. Good drainage remains important in ordinary beds and containers.

Use fertile, humus-rich soil that holds moisture but drains excess water. Incorporating compost into ordinary garden soil can improve both fertility and moisture retention.

Published hardiness information for Canna 'Picasso' varies, but it is generally treated as a permanent outdoor perennial in warm USDA Zones 8 through 10 and sometimes Zone 7 with protection. In colder zones, lift and store the rhizomes before hard freezing.

Yes, Canna 'Picasso' can tolerate some afternoon shade, particularly in hot climates. However, full sun generally produces stronger growth and more flowers.

Late planting, insufficient sunlight, dry soil, or low soil fertility can delay or reduce flowering in Canna 'Picasso'. Keep it evenly moist, feed during active growth, and give it a warm, sunny position.

Yes, fertilize Canna 'Picasso' in spring and during active growth according to the label directions for a balanced garden fertilizer. Avoid excessive nitrogen, which can encourage leaves at the expense of flowers.

Deadhead faded flowers and developing seed pods to keep Canna 'Picasso' looking tidy and encourage continued blooming. Cut each spent flower stalk back after its flowering has finished.

Canna 'Picasso' may be affected by aphids, caterpillars, slugs, snails, thrips, or spider mites. Inspect the undersides of leaves regularly and address infestations early with an appropriate control method.

Yellow streaking, mottling, distortion, or mosaic patterns may indicate a canna virus. There is no reliable cure for infected plants, so remove and dispose of severely affected plants rather than propagating them.

Brown leaves on Canna 'Picasso' commonly result from drought stress, scorching sun after transplanting, wind, frost, or excessive fertilizer. Check soil moisture and roots, and remove leaves that are fully damaged.

Plant Canna 'Picasso' outdoors in spring after the danger of frost has passed and the soil has warmed. In colder parts of the United States, start the rhizomes indoors and transplant them after nighttime temperatures are reliably mild.

Plant Canna 'Picasso' rhizomes about 2 to 4 inches deep with the growing points facing upward. Space them roughly 12 to 18 inches apart, allowing additional room for the clump to expand.

Yes, start Canna 'Picasso' rhizomes indoors several weeks before the last expected frost. Use a warm, bright location and transplant them outdoors only after frost risk has passed.

After frost damages the foliage, cut it back, dig the rhizomes, and let them dry briefly before storing them in a cool, dark, frost-free place. Pack them in barely moist peat, vermiculite, or similar material and check periodically for rot or shriveling.

Canna 'Picasso' can remain in the ground year-round where winters are mild and the soil does not freeze deeply. In colder areas, mulch alone may be unreliable, so lift the rhizomes or move the container indoors before hard frost.

Propagate Canna 'Picasso' primarily by dividing its rhizomes in spring. Each division should retain at least one healthy growing eye, and divisions should be planted promptly in warm, moist soil.

Canna 'Picasso' can produce seeds, but seedlings may not reproduce the named cultivar's flower pattern exactly. Division is the preferred method when you want plants identical to the parent.

Divide Canna 'Picasso' rhizomes in spring just before active growth begins or when new shoots are visible. This makes it easier to identify healthy eyes and gives divisions a full growing season to establish.

Cut Canna 'Picasso' flower stalks back after blooming and remove frost-damaged foliage. In frost-free climates, leave healthy leaves until they naturally decline; in freezing climates, cut the plant down before lifting the rhizomes.

Cultivar-specific toxicity information for Canna 'Picasso' is not well established. Keep the plant and rhizomes away from pets and children, and avoid ingestion of any plant material.

Do not eat Canna 'Picasso' flowers, leaves, or rhizomes because culinary safety for this named cultivar is not established. Grow it strictly as an ornamental plant.

Canna 'Picasso' generally blooms from summer into fall, often continuing until frost when conditions are favorable. Early planting, full sun, steady moisture, and deadheading can extend the display.

Give Canna 'Picasso' full sun, fertile evenly moist soil, regular feeding during active growth, and prompt deadheading. Protecting it from drought and frost is especially important for a long flowering season.

Canna 'Picasso' flowers can attract visiting pollinators such as butterflies and hummingbirds, although wildlife interest may vary by region. Its primary value is its showy, long-lasting ornamental display.