# Fall colour in japanese maples

**URL:** <https://forum.bonsaimirai.com/t/fall-colour-in-japanese-maples/7162>\
**Category:** Horticulture\
**Created:** [October 15, 2020, 7:26pm UTC](https://forum.bonsaimirai.com/t/fall-colour-in-japanese-maples/7162 "2020-10-15T19:26:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![cab\_lad\_70](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.bonsaimirai.com/cab_lad_70/32/9253_2.png) [@cab\_lad\_70](https://forum.bonsaimirai.com/u/cab_lad_70)\
**Post date:** [October 15, 2020, 7:26pm UTC](https://forum.bonsaimirai.com/t/fall-colour-in-japanese-maples/7162/1 "2020-10-15T19:26:50Z")

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I just listened to the May 2018 podcast with Dennis Vojtilla.  
He mentions that too much pre-harvest rain dilutes the sugar in his grapes.

I wondered if anyone had noticed a similar effect on fall colour in Japanese Maples.  
Is it possible that either reduced water or a slight foliage reduction would concentrate the sugars in maple leaves?