Bamboo privacy hedge
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Monastery Bamboo

Thyrsostachys siamensis

Matt's 9b field note

“Upright, tight-clumping bamboo for the privacy screen.”

Background

A species native to Thailand, Myanmar, Laos, Vietnam, and Yunnan, China. The common name comes from its traditional planting around Thai Buddhist monasteries. One of the most useful bamboos in its native range, harvested for strong nearly-solid culms used in construction and for edible shoots ('Tiger Sweet Shoots').

Distinguishing traits

Very tight-clumping bamboo with thick-walled, nearly solid upright culms (2-4 in diameter), persistent culm sheaths, and fine narrow leaves forming an umbrella-like canopy. Matures 20-40 ft (smaller clones ~20 ft). New shoots emerge purple and age from green to yellow-brown. Extremely compact footprint for its height.

Desert care — zone 9b

Chill hours
n/a — ornamental
Cold hardiness
Hardy to about 24-25°F (-4°C) once established; keep soil on the dry side during frost and protect young plants.
Heat tolerance
Excellent tropical heat tolerance; thrives in 120°F summers with regular water.
Water
Moderate; prefers regular moisture with good drainage. Mulch heavily.
Soil
Adaptable to sand, loam, or clay; prefers moist, well-drained, mildly acidic to neutral soil.
Sun exposure
Full sun to partial shade; protect first-year plants from scorching afternoon sun.

Sources