lilly of the valley flowers - Knowledgebase Question

Greenfield, In
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Question by jazziejbj
July 4, 2009
My lily of the valley always turn brown after they bloom-brown spots appear on the leafs then they cover the whole leaf and curl up and dry up.
I have then on the west side of my house where they get he afternoon sun. Should I just remove all of them out of this flower bed and put other flowers in their place

Answer from NGA
July 4, 2009
Convallaria sp. (Lily-of-the-valley) is subject to several diseases. Anthracnose, leaf spot, leaf blotch and crown rot are the main diseases. Anthracnose causes lesions that are often oval in shape and dark brown in color with purplish margins. These spots may fall out, exposing the veins. This disease is not usually fatal but does weaken the plant. The following year, the number of flowers is often reduced. Wet conditions promote infection and spread of the disease. Leaf spot causes brown spots with purplish-brown margins. The spots are small and more or less round. Any of these diseases can be controlled with fungicide applications. Try a fungicide before giving up on the plants. Best wishes with your garden.

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