I have grown two Clouds of Glory (grafted) for over five years. It is a wonderful rose and has never shown any sign of disease even though I never spray it. It grows vigorously and blooms generously almost all year round in coastal southern California. The roses are massive, over five inches across, and are a beautiful shade of white with a hint of porcelain pink in the center. They last four to five days on the bush and are consistently strongly fragrant. It has few prickles and grows to about five feet tall. I highly recommend this gorgeous and healthy rose from Jackson & Perkins.

Clouds of Glory is yet another underrated hybrid tea from Keith Zary formerly of Jackson Perkins. Upright grower to maybe chest high for me, vigorous, disease free for me (with spraying), beautiful porcelain white with the faintest hint of light pink in the center. High centered bloom which could show, but wouldn't be considered an exhibition rose. It does also have a moderate fragrance, and very few prickles. Lots to like with this rose.

If you need/want a white HT this would be a good choice.

I should add that this rose has few thorns/prickles.