Smith (2002) Singing in the Rain is a semi-double to double Itoh Hybrid or Intersectional with butter yellow flowers and light orange streaks. With the softly scented, up to 17 cm large flowers, this plant is a must for gardens and parks all over the world. The ornamental foliage remains green until frost and changes color to autumn shades in the autumn. Singing in the Rain flowers in mid-season and takes several years to mature.