This disease pathogen can overwinter in the soil. If garden impatiens are placed in the same location this coming spring where diseased plants were located in 2012, the new plants may get the same disease again. You may want to consider alternative shade plants to provide color and texture to landscape beds and/or containers.
|Garden impatiens (Impatiens walleriana)|
infected with impatiens downy mildew.
Photo by Margery Daughtrey, Cornell University.