Canna General Information
Cannas add a touch of the tropics with showy flowers and large banana-like leaves. Their statuesque height makes a spectacular show in containers on a patio or deck, along walls or also a showy backdrop in the perennial border. Where summers are hot, Cannas may grow much taller than indicated on the label. All our accent annuals are guaranteed to reach you in good condition and to grow, but we can't guarantee annuals to overwinter. Will be an annual except in zones 9-10 but can be stored over the winter in colder zones. Instructions
Canna Plant Care
Hardy in Zones 9-10. Cannas thrive in full sun but need consistently moist soil. Bulbs can be planted indoors approximately four weeks prior to the last frost. If growing in pots; use a fast-growing, well-draining potting soil and plant bulb about 3-4” deep. Harden off the plants for about a week prior to placing outdoors. Acclimate transplants to outdoor conditions to avoid scorching the foliage. If planting directly outdoors, plant rhizomes once the threat of frost and/or freezing temperatures have subsided. Soil temperature should be approximately 65°. Plant the rhizomes horizontally with the eye (bud) facing up. Water well and add mulch to retain moisture. Cannas are heavy feeders and require a monthly fertilizer that is higher in phosphate for continual bloom. Once established, they prefer consistent moisture during the growing season – do not allow soil to dry out. Watering may be reduced after flowering. Remove flowers to encourage rebloom and keep plants tidy. Lift tubers in the fall in zones 3-8. After 1st frost in fall, cut the stems to the ground and lift the clump with a spade or fork. Store in a dry, well-ventilated, cool dry location in peat or vermiculite where temps do not fall below 40°. Check rhizomes periodically and spray lightly with water to make sure they do not become so dry that root shriveling occurs. Container grown Cannas can be stored indoors in their pots during winter.