How to Fertilize iris 'Benton Bluejohn'?
Diluted iris feed every three to four weeks during spring bloom
iris 'Benton Bluejohn' · Iris 'Benton Bluejohn'
Grow in well-drained, fertile, neutral to slightly alkaline loam in full sun, with upper part of rhizomes exposed at soil level and not overshadowed, rotate every 5-6 years. See bearded iris cultivation
Diluted iris feed every three to four weeks during spring bloom