Arrow Bamboo (Pseudosasa japonica)

Arrow Bamboo

Pseudosasa japonica

Slender, arching stems bring soft vertical rhythm to gardens. Evergreen clumping bamboo; common name: Arrow Bamboo.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Partial to full sun; tolerates light shade, avoid dense deep shade
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Watering Water deeply when top 5–10 cm of soil dries; reduce watering frequency in winter
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Temperature Hardy to -10°C; withstands mild frost, avoid prolonged extreme heat above 35°C
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Characteristics

  • Leaf: Narrow lanceolate leaves, 10–25 cm long, dark green, serrated margins
  • Stem: Slender green culms, 1–3 cm diameter, smooth surface, arching with maturity
  • Rhizome: Short, clumping rhizomes that do not spread aggressively
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Care Guide

Watering

Keep soil consistently moist during active growth period

Fertilization

Apply balanced slow-release fertilizer once. Avoid over-fertilization to prevent excessive culm growth

Composted banana peel tea:Steep fully composted banana peels in water for 24 hours; dilute 1:20 for root drench; avoid raw peels to prevent pest infestations
Pruning
  • Thin out old, yellowing culms in early spring to improve airflow
  • Trim overgrown foliage to maintain desired height and shape
  • Remove any damaged or diseased stems promptly to prevent spread of pathogens
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental screen, hedge, or container plant; used for traditional Japanese craft materials