How to Fertilize Siberian iris 'Soft Blue'?
Diluted iris bulb feed every three to four weeks spring blooming season
Siberian iris 'Soft Blue' · Iris 'Soft Blue'
Grow in any good garden soil that is preferably moist but not waterlogged. In drier soils, dig in well-rotted organic matter before planting then apply as a mulch each spring
Diluted iris bulb feed every three to four weeks spring blooming season