Hibiscus Plants

Hibiscus Soil Conditions

Anonymous added on June 26, 2011 | Answered

What is the proper soil pH for hibiscus in northern lower Michigan? Is river stone mulch harmful to hibiscus?

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Certified GKH Gardening Expert
Answered on June 27, 2011

A pH of 5.5 to 7.8 is okay, but slightly acidic soil (6 to 7) is best. River stone mulch is not harmful, but keep it at least 2-3 inches from the plant.

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