Most florist greenhouse-grown varieties are not available as garden plants, but it could be Leonidas which is one you can buy. I used to grow it and the blooms were gorgeous but it was susceptible to many fungus diseases.

I'll put a link below, but just know that if you get it you'll need to spray it with fungicide:

Here is a link that might be useful: Leonidas

It looks like a HT called Hot Chocolate.

Hot Chocolate HT

Yeah, I agree that it is Leonidas (I bought some for our flower show table last weekend), available from Garden Valley Ranch. Garden Valley Ranch also has Estelle, which is a child of Leonidas.

Here is a link that might be useful: Estelle at GVR

Leonidas. I love it and I've memorized it. :)

The chocolates (Leonidas is a Belgian chocolate company) are better than the rose... ;-)