How to Fertilize iris 'Blue Ballerina'?
Diluted iris feed every three to four weeks during spring bloom

iris 'Blue Ballerina' · Iris 'Blue Ballerina'
Grow in acid or neutral soil in sun or partial shade with a cool root run where the soil is moist but well-drained. Mulch in spring
Diluted iris feed every three to four weeks during spring bloom