The Yuzen series of roses from Japan is well-known for its unique colors and flower shapes. Here are some of the main varieties in the Yuzen series and their characteristics:

1. Yuzen
   - The progenitor of the Yuzen series, with a plant height of 100-120 cm and a flower diameter of 6-8 cm. It is a fragrant, deep pink or purple rose that blooms frequently across multiple seasons. Yuzen has a large number of petals with a tight, cup-shaped bloom that maintains its shape even when it wilts. The petals are not only tightly packed but also have a slight white halo at the edges, making it highly recognizable. It has good disease resistance and heat tolerance, and does not significantly change shape even in high summer temperatures.

2. Iroha
   - A sport of Yuzen, with a plant height of 80-120 cm and a flower diameter of over 7 cm. It is a light pink rose without fragrance, blooming frequently across multiple seasons. Iroha's flowers are slightly more open than Yuzen's and are considered more average among the Yuzen series. The plant is upright and very resistant to wilting, making it an excellent cut flower.

3. Senlitsu
   - The second sport of Yuzen, with a plant height of about 100 cm and a flower diameter of 7-10 cm. It is a light pink rose with a faint tea fragrance, blooming frequently across multiple seasons. Senlitsu's flower color is similar to Misaki, but its flower shape is closer to Yuzen. The flower color can change with temperature, being a light pink when it's cold, but a soft pink with a strong yellow hue when it's hot.

4. Koharu
   - A hybrid tea rose with a strong tea fragrance, with a plant height of about 100 cm and a larger flower diameter that can reach over 12 cm. It is a very popular rose variety among rose enthusiasts.

5. Tamaki
   - A slightly fragrant hybrid tea rose with a flower diameter of 6-8 cm, slightly smaller than Koharu. Sometimes, Tamaki's flowers can have pink spots, which is quite charming.

6. Tamaki Misola
   - The plant characteristics are the same as Tamaki, and sometimes Misola also shows unstable color variations, which is fascinating.

7. Fugetsu
   - A bi-colored flower with yellow and dark pink, with a flower diameter of 8 cm and a moderate tea fragrance. It is a cut flower rose that blooms frequently across multiple seasons. The flower color changes quickly, and it can bloom as a light yellow solid color. It has a large number of flowers and is slightly heat-resistant, with a plant height of 1 meter and a strong plant constitution.

8. Ichika
   - A slightly fragrant medium-sized flower with serrated wave petals of 6-8 cm. The plant situation is as usual, similar to its siblings.

The Yuzen series of roses is known for its numerous petals, delicate flowers, and bright colors, ranging from deep pink to light pink, and turning purple when placed in a vase. The unexpected irregular color patches make people look forward to each flower. These varieties are similar in height, flower shape, and resistance, with the only drawback being slow growth. The Yuzen series of roses is suitable for courtyard or balcony potted plants and is a good choice for rose enthusiasts.