Gardenia Plants
Q.

can i use liguid copper fungicide on a august beauty gardenia was told it had a fungus yellow leaves with brown spots

Zone 30040 | maryannmcculloch added on September 8, 2018 | Answered

could it be to much watering.

A.
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BushDoctor
Certified GKH Gardening Expert
Answered on September 8, 2018

It could, absolutely, be overwatering. You should only water when the top two inches of soil are completely dry.

It can be safe to use a light fungicide, but if you are in doubt, then there is a safer alternative.

Wettable sulfur will kill of most infections in soil, but can be a little acidic for some plants. So it should be applied with dolomitic lime. This will keep the pH of the soil stable, as well as provide calcium and magnesium back to the soil, while the sulfur kills the infection.

This article will give you information on the general care of these shrubs: https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-plant.htm

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