southern blue flag

Southern Blue Flag Iris should be watered consistently and deeply throughout its growing season, which spans from early spring to late summer. During these warm months, the plant should be watered once or twice a week, depending on temperature and soil moisture levels. When possible, water in the morning to avoid encouraging fungal growth. Water slowly and deeply to ensure the moisture reaches the plant's roots. To check when your Iris needs watering, stick your finger 2 inches into the soil. If it's dry, it's time to water. During Fall and Winter, reduce watering until the plant goes dormant.

Southern blue flag requires full sun or very bright light to bring out its best performance and color. They should generally get 5 to 6 hours of direct sun per day, ideally late morning to late afternoon. In hotter parts of the country, afternoon shade is recommended to avoid scorching of foliage.

Southern blue flag (Iris virginica 'Contraband Girl') should be pruned in early spring, after the last frost, but before flower buds appear. Pruning should be done moderately, removing any dead, damaged, or diseased foliage, as well as stems that have grown too tall or spread too far. If needed, prune the foliage back to 6 to 12 inches to encourage bushier growth. Pruning can also help promote better flowering by helping to shape and reduce the size of plants. Additionally, deadheading spent flowers can help the plant concentrate its energy into producing new flowers.