In 2002 Mr Austin selected an unnamed seedling to be the mother and an unnamed seedling to be the father. The resulting seed was sown in January 2003, resulting in a number of seedlings. The best of these seedlings was then selected by Mr Austin. From this plant, two buds were taken and grafted (using the 'T'-budding method) onto Rosa Inermis rootstock under glass. Two years later, the variety was considered good enough for increasing by stenting to six plants. The following year it was selected again and gradually it was increased to ninety plants which were kept and monitored at the David Austin Roses Nursery in Albrighton prior to introduction as a commercial cut-flower rose in 2010.

Inventors: Austin; David C. H. (Wolverhampton, GB)
This invention relates to a new and distinct variety of shrub rose plant named ‘AUSboxer’, which was originated by crossing two unnamed, unpatented varieties of Rosa hybrida. ..The following description is of 1 year-old rose plants of the new variety grown indoors in a greenhouse in Albrighton, Britain in the month of July.