In article , Michael
Berridge writes

Chris Hogg wrote in message
...
Apologies for coming in late to this thread, but has anyone tried
using those water-retaining gel granules as a rooting medium (after
they've been well soaked, of course)? I would think they might be
ideal, holding lots of water but allowing air to circulate in the
spaces between.

You would not want air to circulate round the developing roots. they
need to be in contact with moisture all the time.

Do they, though? I was reading an article recently which said that,
contrary to previous belief, seeds and seedlings took in more water from
the air spaces between the soil than from the soil itself. So might not
the same hold true for cuttings?

And don't most people add sand to the rooting compost - not to hold
water, but to give air spaces?

I dunno - I don't go in for cuttings.
--
Kay Easton

Edward's earthworm page:
http://www.scarboro.demon.co.uk/edward/index.htm