Rose

The hybrid perpetual has cup-shaped flowers with a brilliant crimson colour and up to 50 petals, situated on long stiff stems. The buds are thick and globular and open to strongly scented, hybrid tea-like flowers with a diameter of 11 cm.[2] They appear in flushes over a long period, but according to the RHS Encyclopedia of Roses, only sparingly.[2]

The height of the upright, vigorous shrub ranges between 90 and 200 centimetres (3.0 and 6.6 ft) at an average width of 90 to 125 centimetres (2.95 to 4.10 ft).[1][2][3] 'American Beauty' has prickly shoots, dark green foliage and is winter hardy up to -29 °C (USDA zone 5), but is susceptible to the fungi diseases mildew, rust and black spot.[2] It is well suited as cut flower, and can be grown in greenhouses, in containers or as garden rose, planted solitary or in groups.[3][4]