# How tall can a tree grow?

- Institution: TED
- Department: TED-Ed
- Speaker: Valentin Hammoudi
- Year: 2019
- Level: For everyone
- Language: English
- Subjects: Biology
- Source: [TED](https://www.ted.com/talks/valentin_hammoudi_how_tall_can_a_tree_grow)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Reaching heights of over 100 meters, Californian sequoias tower over Earth's other 60,000 tree species. But even these behemoths seem to have their limits: no sequoia on record has been able to grow taller than 130 meters. So what exactly is stopping these trees from growing taller, forever? Valentin Hammoudi investigates why trees have limited heights. \[Directed by Doug Alberts, narrated by Addison Anderson, music by Doug Alberts\].

## Lectures

1. [How tall can a tree grow?](https://invisiblenetwork.ai/learn/ted/valentin_hammoudi_how_tall_can_a_tree_grow/d991b305e6b3), 5 min (TED's player)