6 favorite votes.  

White, near white or white blend Hybrid Musk.
Registration name: Bloomfield Perfection

Bred by Captain George C. Thomas (United States, 1925).
Introduced in United States by Bobbink & Atkins in 1927 as 'Bloomfield Perfection'.

Hybrid Musk.  

Cream, lilac shading.  Moderate fragrance.  Medium to large, very double, borne mostly solitary, in small clusters bloom form.  Blooms in flushes throughout the season.  

Upright.  

Height: 8' (245cm).  

USDA zone 6b through 10b.  Disease susceptibility: very disease resistant.