"Alan Gould" wrote in message
...
In article , David W.E. Roberts
writes
However a couple of pots have been seriously underfed (pale green
to
yellow/green foliage) and still produce the same results.

Pale green or yellow/green foliage is often a result of oxygen
deficiency at the root system of the plant - caused by
water-logging.

I'm lost here. I thought that Oxygen was a plant waste product. What
does the plant do with the Oxygen you say it needs at the root system?

Franz