Lady Neva definitely gets to the registered height of 42 inches. This year I divided it, gave some away and still had a couple dozen fans left. The scapes seemed to hold up very well until the last few years. I ended up putting a small fence on one side to keep it from leaning. Am hoping that by dividing it this year, I have rejuvenated it. I do wish it had sturdier scapes, but I am keeping it nonetheless. It is such a cheery color.
Branching and bud count are not stellar, mostly 2-way branching with about 6-9 buds. It does seem to be rust resistant.
In my zone 6b garden, it tends to bloom the last week of June through most of July.
Not a great shot, but it shows branching and buds:
