How to Fertilize ninebark [Midnight]?
Balanced perennial feed every four weeks spring through summer growth
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ninebark [Midnight] · Physocarpus opulifolius Midnight ('Jonight')
Grows best in acidic, moderately fertile, humus-rich soil. Will tolerate alkaline conditions, but chlorosis may occur on shallow chalk
Balanced perennial feed every four weeks spring through summer growth