I am always in a search for good 'nose' roses. Blue roses are sometimes a good place to look. Here's a list of 'blue' roses gleaned from an online discussion. Opinions?
Silver Roses
Sterling Silver - Scent is glorious. disease prone.
Stainless Steel - More Vigorous, less scent.
Neptune - Excellent
Fragrant Plum - Excellent
Blue for You - Best scent
Royal Amethyst - Pretty Good
Lagerfeld - Sharp scent. Mixed bag
Angel Face
Sweetness
Vol de Nuit
Shocking Blue
Silver Star (Kordes) NoScent
Silver Star (Star Roses) Even Less Scent
Gray Pearls - Gray
Blue Moon - NF
Blue Nile - Weak
Silverado
Quicksilver
Purplish Roses
Heirloom
Intrigue
Purple Passion
Wild Blue Yonder
Midnight Blue
Lavender Pinoccio
Stephen's Purple
Plum Crazy
Blue Parfum
Blue River