Mine doesn't rebloom, but I don't water during our summer drought nor fertilize: I don't know how it would behave with these encouragements, especially if it had a long growing season. I think some roses in places like California rebloom because they have essentially two springs a year, that following winter and that following summer. All this is speculative.

My plant is trained flat and horizontal: currently it's about six feet high, though I expect with time it will go higher. It's trainable but is nothing like so flexible as a wichuriana rambler, for example.

It is a very pretty rose. It's easy to root, and in fact I need to remember to take cuttings this fall, as I currently have only one plant (ideally I'd like to have duplicates of all my roses).

Melissa

Oh, this was my gateway rose into old varieties (having never cared a whit for hybrid teas)...and still remains one of my absolute favourites today. But no, not a sniff of a rebloom...but who cares when the glorious heps hang on the branches looking (to my eye's) exotic and timeless, like an old Japanese prints. MGS grows in a dull corner of my garden (as it is also obliging about northerly aspects) and although the nodding blooms are delicious, the first green leaves in spring along with the glowing winter heps are extra bonus's (bonii?)
It is an early bloomer, growing tall and graceful - one of those roses which are enhanced by the addition of a clematis (I have Rooiguchi through mine). So yep, the month of bloom is a delight in May but there are so many other reasons for growing this rose (including a sweet and penetrating fragrance).

I failed to answer your query regarding trainability so...it is one of those climbers which do not throw out numerous laterals but maintains a framework of a couple of stout canes with long, flexible canes cantilevering outwards. It is, I think, a rather good candidate for training on wires or on a wall while it would be tricky to grow as a pillar or on an arch. Mine grows in the corner of 2 brick walls and, from a main trunk, throws several long canes which can be tied in along both sides of the wall (on straining wires). It will grow along a horizontal fence line well and is easy to keep a structural shape, replacing older canes with fresh green vigorous ones. As for disease, it has shown itself to be a little prone to rust later in the season - I always try to remove last seasons remnant leaves before new spring growth comes through. It is a vigorous rose and fully deserves its soubriquet of 'Spanish Beauty' and. along with 'Nevada', counts as one of Pedro Dot's great roses.

Mmmm, thank you everyone. Doesn't make the deciding easier! I'm torn atm between Mme GS, Blushing Lucy, Souv. d. Leonie Viennot, and two DAs, Albrighton Rambler and The Lady of the Lake. I really really like the loose, romantic shape of Mme G.S' s blooms, everyone raves about the scent, and I've seen a trial where it was one of the best roses for a hot dry spot, but it's a focal area and I'd really like something with good foliage for it. Decisions decisions! I have Leonie already so that would be a fiscally prudent choice... but I think she might be a titch unruly tbh. Of the Austins, I like the Lady better, but I've not seen one in person and I don't think it'll be released till autumn so... Plus I've tried two Austins in that area already and they both fried, and had to be moved although a rambler should be tougher. Ugh.

I don't know how big a climbing Tea would get for you, but SDMLV has outgrown her pergola here and would love a fair sized tree to climb. She's not going to get it, but I thought you ought to be warned.

Here is mine in winter - after a nightmare summer of yahoo roofing contractors who practically eviscerated poor old MGS, leaving me with the bare minimum of canes...and still it managed to cheer me up on a glum January day.

Yeah, thank you Melissa, I shall shuffle Leonie further down the list of potentials - I had a feeling she might be ambitious, even here.

Camps, those hips really are beautiful. H'mmm. I kind of want MGS somewhere where I can smell it. I wonder if she'd like to clamber over the shed - I have a bench along the side, the planting spot would be quite shady till whatever I put there gets over three foot or so. Once it was up into the light it would be sunny almost all day though.