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Yellow Leaves on Mandevilla Plant

My ruby red mandevilla vine in L. A. keeps getting yellow leaves all over. It has not flowered yet. It gets about 6-7 hrs of sun now. Is that too much? Why are the leaves turning yellow? Is it too much water?

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1 Comment To "Yellow Leaves on Mandevilla Plant"

#1 Comment By Nikki On 05/30/2011 @ 11:25 am

Mandevilla favor humid conditions. If your plant is exposed to the sun, the soil may be too hot. Try misting/spraying the leaves with water in the mornings and keep the soil moist (NOT wet). You may also want to consider moving your plant (if possible) to an area that doesn’t receive direct sunlight for extended periods of time.

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