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Description
Semiarundinaria densiflora, also known as Tonkin Cane or Arundinaria densiflora, is a bamboo species native to Southeast Asia. It belongs to the Poaceae family and is characterized by its strong, straight culms that can grow up to 30 feet tall and 3 inches in diameter. Its leaves are narrow and lance-shaped, and its flowers are inconspicuous.This bamboo species is commonly used for building, weaving, and ornamental purposes. Its culms are highly valued for their strength and flexibility, making them ideal for constructing furniture, musical instruments, and fishing poles.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Liliopsida |
| Order | Poales |
| Family | Poaceae |
| Genus | Semiarundinaria |
| Species | Densiflora |
Appearance
Semiarundinaria densiflora has a unique appearance that sets it apart from other bamboo species. Its culms are thick and sturdy, with a smooth, greenish-yellow bark that turns brown as it ages. Its leaves are bright green and shiny, with pointed tips that curve slightly outward. Its flowers are small and clustered, and usually bloom in the spring or summer.When planted in the right conditions, Semiarundinaria densiflora can form a dense clump that adds a striking vertical element to any landscape. Its tall, straight culms create a dramatic backdrop for other plants, and its lush foliage provides a lush, tropical feel.
Care Guide
Semiarundinaria densiflora requires specific care to thrive and reach its full potential. Here are some guidelines to help you care for this bamboo species:- Water: Keep the soil consistently moist, but not waterlogged. Water deeply once a week during the growing season, and reduce watering in the winter.- Fertilization: Apply a balanced, slow-release fertilizer in the spring, and again in the summer. Avoid over-fertilizing, as this can cause the culms to become weak and prone to breakage.- Soil: Plant Semiarundinaria densiflora in well-draining soil that is rich in organic matter. Add compost or aged manure to the soil before planting to provide nutrients and improve drainage.- Sunlight: Plant Semiarundinaria densiflora in a location that receives full to partial sun. This bamboo species prefers bright, indirect light, but can tolerate some direct sunlight.- Hardiness Zones: Semiarundinaria densiflora is hardy in USDA zones 7-11. In colder climates, protect the plant from frost and winter winds by wrapping it in burlap or providing a windbreak.
Common Pests & Diseases
Semiarundinaria densiflora is generally resistant to pests and diseases, but it can still be affected by a few common problems. Here are some of the most common pests and diseases that can affect this bamboo species:- Spider mites: These tiny pests can infest the leaves of Semiarundinaria densiflora, causing them to turn yellow and become covered in webbing. To control spider mites, spray the plant with a stream of water to dislodge them, and apply an insecticidal soap or neem oil.- Bamboo rust: This fungal disease can cause orange or brown spots to appear on the leaves of Semiarundinaria densiflora, eventually causing them to drop. To control bamboo rust, prune infected leaves and shoots and apply a fungicide.- Bamboo mosaic virus: This viral disease can cause yellow or green streaks to appear on the leaves of Semiarundinaria densiflora, and can eventually kill the plant. There is no cure for bamboo mosaic virus, so infected plants should be removed and destroyed.
Habitat
Semiarundinaria densiflora is native to Southeast Asia, where it grows in tropical and subtropical regions with warm, humid climates. This bamboo species prefers well-draining soil, and can tolerate a wide range of soil types, as long as they are rich in organic matter.In cultivation, Semiarundinaria densiflora can be grown in a variety of settings, including as a specimen plant, a screen or hedge, or as part of a mixed border. It prefers bright, indirect light, but can tolerate some direct sunlight.
Question and Answer
Q: Is Semiarundinaria densiflora invasive?
A: No, Semiarundinaria densiflora is not considered invasive in most regions. However, it can spread quickly if not properly contained, so it’s important to plant it in a location where it can be easily managed.
Q: Can Semiarundinaria densiflora be grown in containers?
A: Yes, Semiarundinaria densiflora can be grown in large containers, as long as they are deep enough to accommodate its extensive root system. Use a well-draining potting mix, and water and fertilize regularly.
Q: How fast does Semiarundinaria densiflora grow?
A: Semiarundinaria densiflora can grow up to 3 feet per year in optimal conditions. However, its growth rate may be slower in less favorable conditions.
Q: How do I prune Semiarundinaria densiflora?
A: Prune Semiarundinaria densiflora in the late winter or early spring, before new growth begins. Remove any dead, damaged, or diseased culms, and thin out any crowded or weak shoots. Use sharp, clean pruning shears to make clean cuts.
Related Plants
– Semiarundinaria fastuosa- Semiarundinaria makinoi- Semiarundinaria okuboi- Semiarundinaria yashadake
References
– “Semiarundinaria densiflora.” Missouri Botanical Garden. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=287778- “Semiarundinaria densiflora.” Plant Village. https://www.plantvillage.com/en/topics/bamboo/diseases_and_pests_description/instances/semiarundinaria-densiflora- “Tonkin Cane Bamboo.” Bamboo Sourcery. https://www.bamboosourcery.com/tonkin-cane-bamboo/
