They sit high on slender stalks above an abundance of large-leafed green foliage and suit tropical-style gardens and a frost-free climate.
• After flowering, cut back the stem to a few centimetres above ground level.
• In a relatively frost-free zone, leave the rhizomes (the underground roots they sprout from) in the ground over winter and they will reshoot next year.
• If in an area prone to frost, lift the rhizomes with a garden fork, divide them, wash, dry and then store them over winter in a dry place such as a garage or garden shed. When the next planting season comes around, replant the rhizomes in the ground. A single rhizome planted in spring will multiply to eight rhizomes by the next planting season!
• Lift and divide canna clumps every 2–3 years to keep the clumps looking tidy – you’ll also have more cannas to plant around the garden.