I am interested in possibly planting sdlm. Is it hardy in my zone 8(SE tx) and how tall does it get? It look like a beautiful rose, any info will be helpful. Thanks!
I can't say much about how it would do for you (I'm in NJ), but this rose is rather popular among the antique roses fans. I imagine you'll get a lot more responses if you repost this on the antiques forum (linked below).
Here is a link that might be useful: Antique Roses Forum
Also read through the results of a search for the rose's name linked below. As you'll see, 'Souvenir de la Malmaison' gets talked about a lot.
Here is a link that might be useful: Search results for Souvenir de la Malmaison
Thanks I will post there too.
It does well here in the heat and humidity of Florida and is a heavy bloomer so far.
SOUVENIR DE LA MALMAISON is beloved throughout the Mid-Atlantic and the Deep South. It does particularly well in heat and humidity when other roses fail. It is also more resistant to black spot than most modern roses. This petite Bourbon is considered a classic and a most have for those who adore Old Garden Roses. Although short (it tops out at 3 feet and just as wide) it is vigorous and grows well on its own roots. You should definitely get it.
Image of SdlM by Archduke-z7b-8a-DFX-TX at Hortiplex