Cannas are bold, tropical perennials producing large paddle-shaped leaves and vivid flowers in red, yellow, orange, or striped forms over summer and autumn. One of the most dramatic warm-season flowering plants for Perth gardens. Full sun. Rich, moisture-retentive soil. Water generously through summer. Feed regularly. Cut spent flower stems to the base to encourage continuous flowering. Yellow produces clear, bright yellow flowers - the warmest and most tropical-feeling colour in the Canna range.