I've had this rose for 4 years in the ground. I've always noticed only a faint fragrance in the early morning and late afternoon/evening. I happened to catch a newly opened bloom in mid morning around 10:30am and it was very fragrant. In fact, the fragrance wafted a bit, as I could smell it walking up the driveway to the backyard. It was a very pleasant surprise.

Later that evening, I went to the same bloom, and it had only the same faint fragrance I always smell. Apparently, this rose has its strongest fragrance mid-morning, when the sun has been up for a while, but it's not scorching hot yet.