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Gardenia Plants

Q.Yellow Leaves on Gardenia Bushes

Anonymous added on May 3, 2011 | Answered

we have yellow leaves on our gardenias and I believe the pH of the soil is too low. I have been using Bloom Boost for feeding them. I have large gravel rocks at the bottom of the planter for drainage. What would I need to use to raise the pH? I used Miracle Grow potting soil to plant them in also.

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