boy do i have opinions.. care for one....

daylily

south facing.. z7 .. hot.. humid MD ...

i would call that a frying pan in MI ...

ken

Very narrow. I think The Blues grows way outward when it leans over, but maybe a procumbens or something staked to the height you want and allowed to weep then, or how about something on a standard? These are the things I think about in my yard. :)
Cher

Al, that's a miniature or super narrow upright spot-only.
Of course 'Al's Irish Drift' will fit nicely. uh-huh!

I'd look into hard pines, heat tolerant firs (if drainage + those grafted on Canaan will be more tolerant than other rootstock; sure if you can find those grafted to firma), no soft pines, no larch, juniper is good, hemlock is a no, and all spruce are good. 2" per year but I wouldn't go any more.

Pick a website such as Coenosium and I'll write a list of my favorites.

Dax

Dax beat me to it and perfectly described some suggestions though I will say any 'weeping/trainable' types would be fine as long as you don't mind staking for a while and then training as you see fit.

Picea pungens 'The Blues' would be fine there, train it all over the place.

-Will

Larger weepers that are sharp to the touch are not very conducive to near a sidewalk. I would never plant 'The Blues' there, or anything that will ever outgrow that space in a hurry. You'd be planting a tree, next to a house.

Dax

the problem i see.. is how to get a mini to get 'established' ... with the known variable ...

not that it cant be done...

but that is might be very hard ... with the sun and the heat.. etc ...

ken