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Darrell from Phoenix, Arizona writes

How often can I apply Hi-Yield Iron Plus Soil Acidifier 11-0-0 around hibiscus schaub? Had great results after one application.


Hi-Yield Iron Plus Soil Acidifier 11-0-0 can be reapplied with subsequent treatments as needed per the product label. Timing can vary on when to reapply. When plants are yellowing, poorly flowering, or not responding to fertilizer treatments is the best time to use this. 

Answer last updated on: 04/28/2021

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