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Do not buy and shade impatiens this season

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Do not buy and shade impatiens this season

Postby copperbeech » Mar 24, 2013 11:41 am

Last year many of my shade impatiens were struck down with what I discovered is simply referred to as "downy mildew" (caused by the fungus-like organism Plasmopara obducens). It is a real and widespread problem affecting those impatiens that are of the walleriana heritiage (basically all shade impatiens).

http://www.torontomastergardeners.ca/index.php/askagardener/impatiens-dying/

http://www.ottawacitizen.com/life/Gardening+Love+hate+them+ubiquitous+impatiens+being+dealt+deathblow+mildew/8095682/story.html

Until the industry develops new walleriana strains that are not susceptible to this problem it really should be the case that nurseries and garden centres *not* carry these plants this season. This would be the responsible thing to do.

There are many plant alternatives (annuals) that can still perform in shade.
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Re: Do not buy and shade impatiens this season

Postby Countryboy » Mar 26, 2013 8:44 am

And not just the New Guinea *shade* Impatiens... we bought a flat of regular Impatiens last Summer and they all were lost to that downy mildew.

Select your suppliers very carefully this Spring!
Adopt the pace of nature, her secret is patience.
.....Ralph Waldo Emmerson....

Frank . . ON5a
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Re: Do not buy and shade impatiens this season

Postby Canadian Ent » Mar 29, 2013 8:00 pm

What is a good alternative to impatiens?

I love them because they constantly reflower and no dead-heading; apart from watering they are zero maintenance but look fantastic
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Re: Do not buy and shade impatiens this season

Postby Countryboy » Mar 31, 2013 9:01 pm

Oooops! New Guinea Impatiens is the 'sun' variety.

I won't be looking for an alternative to Impatiens. I don't think there's anything like it for shade. The only thing I'll be doing differently this year is buying my flats from a reliable garden centre. :)
Adopt the pace of nature, her secret is patience.
.....Ralph Waldo Emmerson....

Frank . . ON5a
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Re: Do not buy and shade impatiens this season

Postby mike in Ottawa » Apr 04, 2013 5:44 pm

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Re: Do not buy and shade impatiens this season

Postby Northpine » Apr 07, 2013 9:57 am

Very informative article Mike. Thanks for the link.
Marie
Zone 1b, Northern MB
One of the most delightful things about a garden is the anticipation it provides. ~W.E. Johns, The Passing Show
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Re: Do not buy and shade impatiens this season

Postby mollyzone5 » Apr 07, 2013 10:20 am

One more reason to collect your own seed and grow your own plants.
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