Distylium racemosum aka Isu Tree
Taxonomy ID: 8727
Distylium racemosum, also known as the isu tree, is a flowering plant native to subtropical eastern Asia. It can be found in central and southern Japan, the Ryukyu Islands, South Korea (Jeju Island), southeastern China, Taiwan, Hainan, and northern Vietnam. This spreading shrub or tree features narrow ovate leaves that are leathery, glossy, and dark green, measuring 3-7cm in length. The plant produces small flowers in late spring and early summer, with showy red calyces and purple stamens, arranged in upright racemes that are 2.5-5cm long.
Distylium hybrids are gaining popularity as a landscape plant due to their desirable characteristics. These evergreen plants are compact, resistant to disease and insects, and tolerant of heat and drought. Additionally, the isu tree has been known to reach heights of 60' in its native habitats and is highly regarded for its wood content. In fact, the wood of Distylium racemosum is used in the production of musical instruments. Some notable cultivars include 'Guppy' and the variegated 'Akebono'.
Common names
Isu Tree, Isunoki, Evergreen Witch HazelMore information about Isu Tree
How difficult is it to take care of Isu Tree
Isu Tree is a low-maintenance plant that requires minimal attention, making it an excellent choice for beginners.
What is the region of origin of Isu Tree
Isu Tree’s native range is E. Asia - China, Japan.
What are the water needs for Isu Tree
Isu Tree should be watered regularly, allowing the soil to dry out between waterings.
What is the right soil for Isu Tree
Isu Tree loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.
What is the sunlight requirement for Isu Tree
Isu Tree requires abundant, bright and direct light. Placing it less than one foot from a window is the best way to make sure the plant receives enough light to survive and thrive. Depending on your region, however, the current weather can affect the placement of the plant in your home. For example, in some areas the sun may be too direct and intense, so it's best to place it farther away from the window. You may also need to adjust your placement according to the season as the sunlight can change intensity over the course of the year. If you live in a region with significant temperature fluctuations, such as a desert, you may need to place the plant a bit farther away from the window to avoid extreme heat or cold. With some care and attention, your Isu Tree will be sure to bring you many years of beauty and enjoyment.
How to fertilize Isu Tree
The growth of Isu Tree is gradual and it doesn't necessitate any additional fertilizers. Replacing the soil in its pot once a year should suffice to provide the plant with sufficient nutrition. It's important to keep in mind that plants derive their energy from the sun's rays, not fertilizers.
Is Isu Tree toxic to humans/pets?
Ploi does not possess verified information regarding the toxicity of this particular plant. In the event that you, a member of your family, or a pet ingests plant material with an unclear toxicity level, it is highly recommended to seek the advice of a medical professional.
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