How Fast Does Bamboo Grow?

The fast-growing bamboo (Bambusa spp.) plant is an ideal choice if you want to quickly create a border or screen. Part of the grass family, most bamboo varieties grow in U.S. Department of Agriculture plant hardiness zones 5 through 11. Bamboo is available in running and clumping varieties. Running varieties grow an average of 3 to 5 feet taller in a year.

Bamboo Tree
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Growing bamboo stalks

Root Growth

Many bamboo varieties have shallow root growth with a maximum depth of 20 to 24 inches on large tree-like plants. Running varieties spread through root rhizomes which are close to the soil surface. Clumping varieties form shallow root masses that stay in a clump.

Growth Height

Running bamboo varieties grow more quickly than clumping plants, with an average growth in height of 3 to 5 feet per year. Clumping varieties grow on average 1 to 3 feet taller per year. The timber bamboo (Bambusa oldhamii) grows an amazing 2 to 3 feet a day until it reaches 45 feet or higher.

Growth Spread

Clumping bamboo spreads very slowly and is considered non-invasive. This makes it an ideal variety for home gardens. Running bamboo generally spreads 3 to 5 feet per year, but some varieties can spread up to 15 feet per year.

Considerations

Running bamboo varieties spread quickly and are considered invasive in some areas. Prevent overgrowth and spreading by installing root barriers around the plants. Examples of root barriers include planting the bamboo in a large pot submerged into the soil or installing polyethylene sheets around the planting area to prevent root penetration.


Jennifer Loucks

Jennifer Loucks has been writing since 1998. She previously worked as a technical writer for a software development company, creating software documentation, help documents and training curriculum. She now writes hobby-based articles on cooking, gardening, sewing and running. Loucks also trains for full marathons, half-marathons and shorter distance running. She holds a Bachelor of Science in animal science and business from University of Wisconsin-River Falls.