by Connie Oswald Stofko
Margery Daughtrey, senior extension associate with Cornell University who co-wrote a fact sheet on how downy mildew affects impatiens, would like to know how your impatiens are doing.
“I saw a photo last week of an impatiens in the Buffalo area with the distinctive white sporulation on the under-surface of the leaves– definitely downy mildew,” Daughtrey said.
Daughtrey provided us last year with a photo showing the disease, which you can see below.
“Have any of the rest of you seen the disease yet this year?” Daughtrey asked. “I am especially interested to hear if and when the disease reappears in a flower bed that showed the disease last year!”
Please leave a comment below to let Daughtrey know if your impatiens have been affected this year, when the disease showed up and whether you were affected last year.
People that I have chatted with have said their impatiens are still doing fine, and one Buffalo-area gardener recently commented on our previous article that her impatiens are thriving as well.
However, a couple of gardeners– both outside of Western New York– wrote in to say that they are losing their impatiens. One gardener is from the Poconos area of Pennsylvania and the other is from Etobicoke, Ontario. The Etobicoke gardener grew 2,000 plants from seeds and as of July 24, they were gradually dying. What a shame!
To learn more about downy mildew and impatiens, see “Disease that’s killing impatiens may return for years; no treatment exists.” For ideas on other plants that do well in shade, see “Impatiens are dying; choose alternative shade plants instead.”
How are your impatiens doing? Please leave a comment below.
UPDATE: See Margery Daughtrey’s predictions for how well impatiens might fare during the summer of 2014 in Western New York.