Invisible Revealed

Last year I made several crosses onto some of my best Hulthemia seed parents with many of Will Radler's black spot resistant varieties - 'Knock Out', 'Double Knock Out', 'White Out', 'Sunny Knock Out' and 'Milwaukee Calitrava'.  Among these, were many fewer seedlings exhibiting blotches than is usual, and that made me think that somehow these cleaner varieties were "resistant" to exhibiting the blotch. 

As previously mentioned in this blog, the Hulthemia blotch intensifies in cooler weather and as expected for October, we have been having much cooler weather over the last month.  Well, what was invisible is now visible, albeit extremely subtle.  I kept this seedling not for its blotch (because I didn't think that it had one), but for its cleanliness and floriferousness.  I had thought that it might make an improved 'White Out'.  In fact I was disappointed when it first bloomed and didn't have a blotch.  Now, in the cooler weather, if you look very closely, you can see that it does in fact have a blotch and will therefore be able to pass along the blotch in further breeding.

I'm glad that I kept this seedling.  Would you keep it?