# How plants tell time

- Institution: TED
- Department: TED-Ed
- Speaker: Dasha Savage
- Year: 2015
- Level: For everyone
- Language: English
- Subjects: Medicine and health, Psychology and the brain, Teaching and learning
- Source: [TED](https://www.ted.com/talks/dasha_savage_how_plants_tell_time)
- 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: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Morning glories unfurl their petals like clockwork in the early morning. A closing white waterlily signals that it’s late afternoon. And moon flowers, as their name suggests, only bloom under the night sky. What gives plants this innate sense of time? Dasha Savage investigates how circadian rhythms act as an internal timekeeper for flora and fauna alike. \[Directed by Avi Ofer, narrated by Addison Anderson, music by Stephen LaRosa\].

## Lectures

1. [How plants tell time](https://invisiblenetwork.ai/learn/ted/dasha_savage_how_plants_tell_time/9872b887e67d), 5 min (TED's player)