Inventors: Gray; John Charles (Highfields, AU), Gray; Sylvia Elizabeth (Highfields, AU)
`GRAzest` is a seedling selection which resulted from the controlled cross-pollination of an unnamed Rosa hybrid female breeding line (not patented) and an unnamed Rosa hybrid male breeding line (not patented). ... After many years of trialing, the female parent was confirmed to possess a combination of desirable traits such as very strong fragrance and having flower color white, borne on a bushy plant growing to 1.2 m tall and wide. The male parent was selected for use in breeding after trialing confirmed the presence of a modern flower color. During the spring of 2014, the female parent was emasculated and was manually pollinated with pollen from the male parent.