She said she could hear individual blades of grass shoving aside whatever stood between them and broad daylight (such as it is at 9 p.m.), meaning, I suppose, fallen leaves and other debris.

Actually, I could practically see it grow this afternoon - but still blew it off, because I didn't feel like it. Better not rain tomorrow... I Can Hear the Grass Grow | Blogs | lancasteronline.com ...

You can hear the grass growing." So all the grandkids would stop chattering and hold our breath and listen, and we'd hear the sound, so soft we'd never have heard it without going into a listening ...

'I Can Hear the Grass Grow', 'Blackberry Way' & Flowers In The Rain (the latter being the first record played on BBC Radio 1), are The Move's better known work not forgetting 1971's 'Tonight'.

There's a phrase in German for those who react too quickly to new information - they "can hear the grass growing." But perhaps they merely have good ears.