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Old 11-06-2017, 10:27 AM posted to uk.rec.gardening
Janet Janet is offline
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First recorded activity by GardenBanter: Jan 2015
Posts: 215
Default How long till a leaf is in profit?

In article , says...

In article ,
Clive George wrote:

Yes, exactly. So my question is, how long does the leaf have to be
around before it has generated enough energy to replace that stored
energy which was used to make it?



I have thought of that question in the past, and occasionally tried
looking up, but have found nothing useful.


Hydroponic growers might know

Janet