Tetrapanax

Description

Tetrapanax is a genus of flowering plants in the Araliaceae family, native to East Asia. The most common species is Tetrapanax papyrifer, also known as rice paper plant or Chinese rice paper tree. It is a fast-growing, evergreen shrub or small tree that can reach up to 30 feet in height. Tetrapanax is widely cultivated for its ornamental value, as well as for its economic uses in traditional Chinese medicine and paper-making.

Taxonomic Information

Appearance

Tetrapanax has large, palmate leaves that can reach up to 3 feet in diameter. The leaves are glossy green and deeply lobed, with 5-11 leaflets that are sharply toothed. The trunk is usually single, but can be branched, and is covered in a rough, dark brown bark. In late summer or early fall, Tetrapanax produces clusters of small, white flowers that are followed by small, black berries.

Care Guide

Water: Tetrapanax prefers moist, well-drained soil, but can tolerate some drought once established. Water deeply and regularly, especially during hot, dry weather.Fertilization: Feed Tetrapanax with a balanced, slow-release fertilizer in early spring, and again in mid-summer. Avoid over-fertilizing, as this can lead to excessive growth and reduced hardiness.Soil: Tetrapanax prefers a rich, fertile soil that is slightly acidic. It can tolerate a wide range of soil types, but does best in a well-drained, loamy soil.Sunlight: Tetrapanax prefers partial shade to full sun. In hot, sunny climates, it may benefit from some afternoon shade.Hardiness Zones: Tetrapanax is hardy in USDA zones 7-10. It can tolerate temperatures down to 0°F (-18°C), but may suffer damage in severe winters.

Common Pests & Diseases

Tetrapanax is generally resistant to pests and diseases, but may be susceptible to spider mites, scale insects, and leaf spot. To prevent these problems, keep the plant healthy and well-watered, and remove any diseased or damaged foliage promptly.

Habitat

Tetrapanax is native to East Asia, including China, Taiwan, and Japan. It grows in forests and along streambanks, often in shaded or semi-shaded areas. Tetrapanax is widely cultivated in gardens and parks throughout the world, and is sometimes used as a street tree.

Question and Answer

Q: Is Tetrapanax poisonous to pets or humans?
A: No, Tetrapanax is not toxic to pets or humans. However, the plant may cause skin irritation or allergy in some individuals.Q: Can Tetrapanax be grown in containers?
A: Yes, Tetrapanax can be grown in large containers, but may require frequent watering and fertilizing.Q: How fast does Tetrapanax grow?
A: Tetrapanax is a fast-growing plant that can reach up to 3-4 feet per year in optimal conditions.Q: How do I propagate Tetrapanax?
A: Tetrapanax can be propagated by seed, division, or stem cuttings. Seed propagation is the easiest, but may result in variable offspring. Division and stem cuttings are more reliable, but require more skill and care.

Related Plants

• Panax ginseng
• Panax quinquefolius
• Panax notoginseng
• Schefflera actinophylla
• Schefflera arboricola

References

• Dirr, M. A. (2009). Manual of woody landscape plants: Their identification, ornamental characteristics, culture, propagation and uses. Stipes Publishing.
• Flora of China Editorial Committee. (2011). Flora of China (Vol. 14). Science Press.
• Huxley, A. (1992). The new RHS dictionary of gardening. Macmillan Press.