Hulthemia Persica Seedlings (Part 2)

The Hulthemia persica seedlings continue to be affected by powdery mildew.  It appears that all but one are highly susceptible.  Some have died due to the infection, while most of the others seem to have had their growth stunted by the infection.

The lone seedling below appears to be resistant.  It is also the most vigorous and is just starting to put out side shoots.  The prickles (thorns) look very much like what you might find on a noxious weed.

I wonder if it will bloom next year?  I sure hope so.