I am going to be implenting the following grading system for Daylily Rust Resistance:
AA The plant shows no sign of Rust. Complete Resistance. *
A Excellent garden apperance. Very little Rust.
B Good garden appearance. Some Rust present.
C Fair garden appearance. Plant may be some disfigured.
D Unsatisfactory garden appearance.
F Plant looks horrible due to Rust.**
* At this time, it is assumed scientifically that no Daylily has total immunity to the Daylily Rust,
so even if I see no Rust on the plant, the highest grade I will give is A+, Thuse the AA will not be used at least at this
** An F Grade plant in terms of Rust Resistance will not survive here. It ends up
doing the "Got Rust And Died" [GRAD] thing. Additional note. Some plants may get a grade F on the shady side of
the house, but get by fine on the sunny side. Hint, grow those in the sun.
I will concentrate mostly on plants Grade B or better in terms of Rust Resistance. This grading is
to reflect how the plant grows for me at this location without the use of heavy duty rust treatments. It is not meant
to be a criticism of the hybridizer or the plant. I hope this information is useful to those wishing to hybridize with
the mentioned Daylilies and to anyone seeing what Daylilies will grow in the area around Dunnellon, Florida without the use
of heavy duty rust sprays.