How big are you going for? I'd strongly recommend going for a once blooming, early yellow. The Chinese species get BIG, and bloom very early. Yellow spinossismas are only about 5 ft tall, and bloom about a month later. Almost all Austins require a regular spray program in your location.

My Golden Celebration gets full sun but my Graham Thomas is situated in a similar way to yours. It's planted on the south west corner of my lot with an apple tree behind it and a hedge on one side. It gets noon sun and late afternoon sun. It blooms well in the spring and usually once more later in the season but not a lot. Both are very winter hardy for me so they should be fine for you. They do black spot but then I think almost all the Austins do. I will note for you that Graham Thomas is very water sensitive. It needs a lot of water, and often, to keep it from wilting. Golden Celebration isn't quite so thirsty.

Teasing Georgia was just that for me. It wanted to sprawl for a couple of years with sparse blooms, then just up and died at the start of season 4. I don't think it would be happy kept as a shrub, others may disagree. Needed regular treatment for blackspot. If someone gave me a plant, I would give it away .

I found Teasing Georgia to be the most shade tolerant of the three, and I have it as a free-standing shrub in two part-shade locations. It doesn't bloom a ton, which detracts from the effect of the blooms in that location. If Golden Celebration is happy it's more likely to want to climb, but it likes sun. Graham Thomas also likes sun, but it's more compact for me. My TG doesn't blackspot particularly badly, but Diane is closer to your zone and her experience is more likely to be yours in eastern PA.

Since you are in zone 6/7 you would have a lot of options in hybrid musks, many of whom come in a soft yellow color. Danae is a light yellow hybrid musk and she should be good in part shade - several tend toward white instead like Moonlight or the unkillable monster shrub Darlow's Enigma. You could also go with an Easy Elegance shrub like High Voltage or Yellow Brick Road. Both are a soft yellow double bloom that fades cream, and I have both of these in part shade on the east side of my house, mostly shaded throughout the day between houses.

Cynthia

How tall of a plant are you looking for in this location?

Teasing Georgia may get to large, even in partial shade. I like both GT and GC. GC is looser blooms. GT has the most gorgeous yellow blooms. I have all three!

Thank you so much everyone for your helpful comments and suggestions.
As for the size mad_gallica and Diane asked, I started my search with something
3 to 5 feet high in mind, and I'm aiming for a higher side of that
range (4-5 ft). I saw those three advertised as being about that size if grown as a shrub, but can they be much bigger than that?

Some varieties mentioned here are new to me... I'll check them out tonight!

Eri

My two roses behave exactly the same as Seil's roses. I have a Golden Celebration in full sun and Graham Thomas in partial shade, sun from 9-1. GT does very well in the shade and blooms much more than GC, better flush in spring and repeats sooner the GC. Though GT does not like to be a shrub, it wants to be a small climber (6-7ft). For me,GC has shape more like a bush than GT. Both tend to blackspot and lose leaves by late summer.

Graham Thomas throws out very long canes, I've had them up to 12' long. My experience is that nearly all DAs grow taller than advertised. Also most tolerate a bit of shade. If you don't mind something on the shorter side of your range, Molineux is one of DA's best bloomers and is pretty BS resistant (for me). I understand that another yellow will be sold in the US next year, Poet's Wife. The suggested height is 4'. You can check out the details on DAs UK Site: Poet's Wife.

Hi Eri

Given your size range, I agree that Teasing Georgia will get too big for the space you want. As a shrub, she's got long gangly arms that reach out and wind around all her neighbors before they bloom. I don't think I could prune her and keep her blooming at 4-5' even in zone 5. She is only 5' tall, but many of her canes are 6-8' long drooping over other plants.

Cynthia

The only rose I have is Teasing Georgia. It is very healthy & came through the last two New York winters like a champ. It has tons of buds & blooms. The thing is that it's enormous. I have to prune it pretty severely to get it to its current size - about 9' high & 6' across. I literally had to get on a ladder with a pruner & saw to whip it into shape. Some of the branches are quite thick. Scary. Eri54, it doesn't sound like this is the size you were aiming for.

I must say though that the blooms are gorgeous.

I have Teasing Georgia. Right now she has maybe 2 dozen leaves. She did survive the winter though and has bloomed nicely in semi shade but is not too great for black spot resistance. I have found that the same variety of rose has different characteristics depending on where it's planted, including how much black spot it gets. I have 2 Kordes Lavender Veranda, the one in semi shade has less black spot than the one that gets more sun. The same applies to DA Maid Marion. All are planted in the same soil mix and all are mulched with the same mulch. I can't make rhyme or reason out of black spot susceptibility since it seems to vary from the same variety plant one plant to the next. I'm completely flummoxed! ;-)

Sharon

Thank you so much guys for your further helpful comments.
So it seems GT and TG may grow too big... 5 ft, 6ft, 7ft.. and
ratdogheads's GT canes as high as 12 ft, even when grown as a shrub?!
This is why real life experiences are so valuable... thank you! It sure
seems they are happier as a climber, and if so, and I assume they are also
wider than advertised in that case, they are most certainly beyond what
this specific space can accommodate. I want whatever plants that will
sit there to be happy and comfortable...

(*BUT, I am determined to find some other bigger space for them in the future... they are too beautiful not to!).

So,
in that sense a shorter side of the range would also be good as well
for that particular space (it's safer). I checked out Molineux and
Poet's Wife. They are pretty, and I saw yesterday the ARS website saying
Molineux can take some shade. ratdogheads, how many hours of sun does
your Molineux get?

I've been searching/reading those
varieties suggested... and currently about spinosissimas. mad_gallica,
which yellow spinosissimas would you particularly recommend, and where
can it/they be purchased? I saw a yellow one (R. spin. Williams' Double
Yellow) at UK's David Austin, but US's does not seem to carry it. I also
saw Harisons Yellow which as I understand it a half spinosissima? Could
you please share your experience if you grow this variety?

After
the last post I also read at ARS's website that Julia Child can take
some shade too, and Heirloom Roses' website says floribundas can be one
of good choices for part shade. I'd appreciate it if anyone can comment
about how JC actually does in part shade.

Thank you again for your comments so far, they are really helpful!

Happy Child is another DA yellow. I have this for only a few months so I cannot give a recommendation. Got it as an own root from Heirloom.

How about Julia Child? I have her in a spot that only gets about 3 1/2 hours of late morning sun to early afternoon 11:00 to 2:30. She has bloomed decently and has been pretty much disease free. Another you might try is 'Yellow Submarine' which gets a bit more sun and has bloomed nicely all season and has beautiful dark green healthy foliage. 'Yellow Submarine' is listed as hardy to at least zone5 and is only offered as own root. Kordes 'Golden Fairytale' is also listed as shade tolerant. I have this one but it is tiny and hasn't bloomed yet so I don't know how often it flowers or if it will do well in part shade. 'Sunny Knockout' also does okay in part shade but the flower is more single and paler colored than the other roses.

Sharon

Thank you, Karen and Sharon! Sharon, I just asked about Julia Child in my last post (two posts above yours). Given the timing of your reply it was meant to be? :) I'm happy to hear yours is situated in conditions similar to mine and doing well in 6a, which makes her a very strong candidate for me. Karen, it seems Heirloom doesn't list Happy Child anymore, but I saw its photos at Daves Garden. They are all beautiful. I'll keep checking back.

Thank you again everyone for your replies. I'll sleep on it for some more time (enough time before ordering for spring planting) but I think I can make a good decision thanks to your suggestions. Much appreciated.

eri54

You're welcome.

I'm near Cloverdale, MI. I have three TG's with nary a black spot in four years. A bit of mildew but none requiring intervention.

I may have watered these three times over their gravel/clay soil. Here's an arrangement I made today.

Looks like the photo didn't make it.