# Plants/Trees Growing Toward The Sun

**URL:** <https://boards.straightdope.com/t/plants-trees-growing-toward-the-sun/579587>\
**Category:** Factual Questions\
**Created:** [April 24, 2011, 9:04pm UTC](https://boards.straightdope.com/t/plants-trees-growing-toward-the-sun/579587 "2011-04-24T21:04:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SanDiegoTim](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SanDiegoTim](https://boards.straightdope.com/u/SanDiegoTim)\
**Post date:** [April 24, 2011, 9:04pm UTC](https://boards.straightdope.com/t/plants-trees-growing-toward-the-sun/579587/1 "2011-04-24T21:04:30Z")

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Is there a technical term for what causes plants/trees to grow toward the sun?

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**Author:** ![Old\_Eel](https://avatars.discourse-cdn.com/v4/letter/o/977dab/32.png) [@Old\_Eel](https://boards.straightdope.com/u/Old_Eel)\
**Post date:** [April 24, 2011, 9:08pm UTC](https://boards.straightdope.com/t/plants-trees-growing-toward-the-sun/579587/2 "2011-04-24T21:08:02Z")

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Heliotropism.

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**Author:** ![johnpost](https://avatars.discourse-cdn.com/v4/letter/j/f17d59/32.png) [@johnpost](https://boards.straightdope.com/u/johnpost)\
**Post date:** [April 24, 2011, 10:08pm UTC](https://boards.straightdope.com/t/plants-trees-growing-toward-the-sun/579587/3 "2011-04-24T22:08:34Z")

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Phototropism is growth towards a light source.

Heliotropism is the plant orienting to the sun through out the day.