Brown leaves on mandevilla - Knowledgebase Question

Ramona, Ca
Question by staceydhowe
July 25, 2009
My mandevilla is producing new growth and flowers, but some of the leaves are turning brown and dry. What is the cause?

Answer from NGA
July 25, 2009


Mandevilla likes heat and sun, it needs full direct sun all day and an evenly moist soil, meaning damp but not sopping wet or saturated. It needs a spot with good air circulation. It also needs regular fertilization during the summer with a water soluble fertilizer such as 10-10-10 and/or a slow release fertilizer. Read and follow the label instructions. Based on your description, I am not sure if your plant might have a fungal or bacterial infection, or if it is just in need of fertilizer. If you can adjust the growing conditions a bit, perhaps it will improve. If it continues to exhibit the same symptoms you might want to consult with your county extension. Good luck with your plant!

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