Plant of the week

‘CAESAR’S BROTHER’

LARGE, colourful, bearded flag irises are almost over. But their non-bearded rded cousins are still lookingg superb. Among g those, Siberian n Iris, I. sibirica is the most popular and easy to grow. Siberian irises prefer moist soil oil and thrive in semi-shade or sun. Tall, erect stems carry beautifully shaped flowers, usually in shades of blue. The best have flowers with veining, often contrasting with the petals. Among them, Caesar’s Brother has rich purple-blue flowers on 70cm stems. Suppliers include Woottens of Wenhaston, woottensplants.com and crocus.co.uk