They look quite similar. Is it just misleading photographs? Is it worth having both for someone with limited space? If not, which do you prefer based solely on beauty?

In my garden, Senegal is a HUGE climber, and that's here where teas can be iffy. It would probably be hardy for you in *most* winters, but it IS going to die back severely in the occasional "arctic vortex". I know, lol. SdDJ is much hardier, and smaller all around, though still a good sized plant. It can be kept as a bush, and isn't technically even a climber, though anything that throws 8'+ canes is a climber to me, lol. As for color, I wouldn't say they're the same at all. Senegal is a black-ish red, that can be scarlet in heat of summer, and SdDJ tends to be a purplish wine red, and can be downright violet in the right conditions. Though there really isn't another climber quite like Senegal, if you have limited space I'd go with SdDJ, both for beauty and size. But I warn you, SdDJ is very slow to take off. I'd double the old adage "first year sleeps, second year creeps, third year leaps". It was AT LEAST five or six years before mine settled in and really made a show. But once it does take off, it's a more reliable re-bloomer. Senegal, on the other hand, grows like a weed, which is good considering it suffers dieback every 4th or 5th winter, but is stingy with it's blooms after the Spring flush.

Both roses are so dark that they would benefit from being protected from evening sun, and would both show up better against a light background. Where I have mine, in the open garden, the color doesn't "carry" from a distance. The roses look a bit like shadows. But up close, both are gorgeous in Spring...not so much in hotter weather. I will have to say that SdDJ tends to have more disease problems here, but I live in blackspot heaven. I swear I have all five strains of the stuff, lol.

Thank you! That was so detailed and helpful! My original plan was to grow SdDJ on the west side of my pale yellow garden shed, (8 x 8) with crepescule on the east side and let them go at it. The shed door is a dark red brown. Based on your comments I now think Senegal might do better there. It gets dappled shade from the neighbours trees and we're planning to put in a dwarf peach tree on the west side next spring so there should be more shade in a decade 😋 Senegal can even grow over the top of the shed and crowd out Cepescule if it wants. Survival of the fittest!

Then the SdDJ can go on the north side of the house on a drainpipe trellis. The back fence abuts it for extra space if necessary. My house is the same pale yellow as the shed so it should show to advantage.

Now I'm wondering if the good doctor will be too similar in colour to La Reine des Violettes.

Hiyamakki said:
Now I'm wondering if the good doctor will be too similar in colour to La Reine des Violettes.

Not a bit, my Reine des Violettes varies around the purples, crimsons and mauves. Never in the deep reds of the SdDJ. Those reds may even look black from a distance so. If you get the Dr. you are adding a new range of colour. SdDJ is on my wish list here; perhaps it might arrive in my next shipment
Arturo

Thank you! Then the plan is to aquire all three!