Thanks, Vic, Mike.
Vic, surprised penstemons tend to be invasive in your location!
Wish you could direct some of them up here.
Mike, yes; David has only species iris. Another below.
David has planted around 1500 different perennials at Merlin's Hollow; many he raised from seed.
That other one's a Himalayan Codonopsis: you're right about Campanula affiliations; it is in the Campanula (bellflower) Family. And Codonopsis is an exclusively Asian Genus.
It's been periodically so wet around here, things been delayed.
A few more pictures from Merlin's Hollow (last Sunday).
The very confusing one for me, a week later (last Sunday) (below). It's changed from the first picture.
Several folk who know far more than I do about the aroid family, identified it as an aroid.
The best possible identification (on the basis of the first picture) was given as the mouse tail plant (an Arisarum),
but David says it's definitely a member of the closely related Arisaema (Cobra Lilies, Jack-in-the-Pulpits).
There's over 250 species of these, with the distribution concentrated in Asia.
Will be working on it with more help from David.