Thyrsostachys siamensis (Giant Thai Monastery Bamboo) | 5 - 1,000 Seeds | £3.49 - £289.99

A tall and upright, clumping bamboo (non-invasive), native to China, Thailand and Vietnam and other countries within South East Asia. Growing to around 20-40 feet in height within its native provenance, it will typically reach around 20 feet tall within temperate Europe.

New shoots start off purple, with the culms changing from green to yellow with age. The 5cm leaf blades are especially long and narrow within this species and eventually form a weeping canopy of dainty foliage which look lovely blowing in the wind.

Once established, clumps can survive temperatures of -4ºC (24ºF), but the key is to keep the soil on the dry side during any frost. Protect any bamboos under the age of 2-3 years old from any frost using sheeting or a horticultural fleece.

This clump-forming species is also cultivated and harvested for its strong canes, frequently used within construction within its native bamboo tree forests

Bamboo seeds are not always available due to worldwide shortages of most species; this is because they rarely flower, sometimes only every 30 to even 100 years (called gregarious flowering)

Please note: full germination instructions are printed on each pack

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© Heartwood - supplying rare and unusual plants and seeds to the curious grower

Genus: Thyrsostachys

Species: siamensis

English name: Giant Thai Monastery Bamboo / Thai Bamboo

Plant type: Clump-forming bamboo (non-invasive)

Eventual height: 20 feet (7 m) within temperate Europe

Season of Interest: All seasons

Hardiness: Hardy to -4ºC (24ºF): keep soil on drier side during frost

Shelter: from very cold winds

Sun Exposure: Eventually full sun to partial-shade -but keep plants under 1 year old out of direct sunlight

Soil: Moist, fertile and well-drained; water well in hotter months

Propagation methods: Seeds, or division of clumps

Thyrsostachys siamensis 🌱 Choose one of the following methods: Method 1: Soak seeds for 24 hours. Lay on moist tissue within a transparent box with air holes. Keep above 25°C (77°F). Open daily to mist-spray and aerate. Method 2: Sow seeds in 2cm deep within compost, keeping moist at 25-30°C (77-86°F). A heated propagator is ideal. Non-heated propagators can be placed within direct sunlight. Approx. germination time: from 2-3 months onwards.

Caution: Not for consumption. Choking hazard. Keep away from children & pets. Handle with care.

Please note: This species is not permitted entry into the United States or South Korea

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