|I am curious to know if there is a rosebush variety that has no thorns...|
|The David Austin 'Heritage' rose is almost thornless, as is the three foot shrub rose J.P.Connell, which, incidentally, is also hardy for northern gardens. The Alba, Mme. Legras de St. Germain and the climber Kathleen Harrop are also both classed as 'almost' thornless.
Kathleen is a shell pink and the Alba a creamy white. A good new miniature thornless rose is Pacific Serenade which is a good, container rose, with a deep yellow miniature bloom.
When considering thornless roses two named brands come to mind. The first is the Kordes rose collection of roses without prickles and the other is the Australian Smooth Touch rose.