Hybrid rockii.  White, dark purple flares.  Moderate fragrance.  Medium to large, single, flat bloom form.  Midseason.  Height of up to 3' (up to 90 cm).   Chen Dezhong (1992).

Hybrid rockii.  Purple, dark purple flares.  Mild fragrance.  Medium bloom form.  Early.  Height of up to 3' (up to 90 cm).   Chen Dezhong (1992).

Hybrid rockii.  Light pink.  Moderate fragrance.  Medium to large, double, crown bloom form.  Early.   Chen Dezhong (1992).

Hybrid rockii.  Pink, purple flares, lighter edges.  Mild fragrance.  Large, semi-double, lotus bloom form.  Mid.  Height of up to 39" (up to 100 cm).   Chen Dezhong (1994).

Hybrid rockii.  Deep pink, lavender shading.  Mild fragrance.  Medium, double, crown bloom form.  Early-to-mid.   Chen Dezhong (1994).

Hybrid rockii.  Pink, mauve shading, purple flares.  Large, single bloom form.  Late.   Chen Dezhong (1985).

Hybrid rockii.  White, lilac shading, black flares.  Strong fragrance.  Large, single to semi-double bloom form.   Chen Dezhong (1985).

Hybrid rockii.  Pink, mauve shading.  Large, double bloom form.  Height of 3' (90 cm).   Chen Dezhong (1994).

Hybrid rockii.  White, dark purple flares.  Flares visible on reverse.  Moderate fragrance.  Large, single bloom form.  Late.   Chen Dezhong (1990).

Hybrid rockii.  Violet-red, dark purple flares.  Mild fragrance.  Medium to large, single bloom form.   Chen Dezhong (1994).