
(Hypericum nakaii)

Nakai's st. john's wort, Nakai hypericum
Hypericum nakaii is a species of flowering plant in the family Hypericaceae, native to Japan. It is a deciduous shrub growing up to 1.5 m (5 ft) tall and 1.5 m (5 ft) wide. The plant has a rounded habit and produces clusters of yellow flowers in mid-summer.
Up to 1.5 m (5 ft) tall and 1.5 m (5 ft) wide
Hypericum nakaii prefers full sun to partial shade. It can tolerate some shade, but flowering may be reduced.
Hypericum nakaii does not have any specific humidity requirements.
Hypericum nakaii does not need much fertilizer. A light application of a balanced fertilizer in early spring can help promote growth and flowering.
Pruning should be done in late winter or early spring before new growth appears. Any dead or damaged branches should be removed, and the plant can be shaped as desired.
Hypericum nakaii is relatively pest-free, but it can be susceptible to rust and leaf spot diseases.
Not suitable for indoor cultivation
The plant prefers well-draining soil and regular watering. It should be watered deeply once a week during the growing season and less frequently in winter.
The plant can tolerate a wide range of temperatures, from -10°C (14°F) to 40°C (104°F). It is hardy to USDA zones 5-9.
Hypericum nakaii grows best in the spring and summer months.
Hypericum nakaii is easy to grow and maintain, making it a great choice for beginner gardeners.
USDA hardiness zones 5-9
Hypericum nakaii is named after the Japanese botanist Takenoshin Nakai, who first described the species in 1924.