.. Is there any organisation who could use seeds if they were sent
them.

Kate, try offering them to a local nursery/playschool/primary school. They
may try and rope you in as their volunteer garden TA though :-}

Indeed they might but it wouldn't get them far, Last time I showed an
interest in joining a gardening group near here they were not at all
interested until they knew which house we had just bought, too late then,
pity that matter`s to some people. Of course I realise that it may be
something to do with me ! just thought I would add that before anyone else
does :-)

kate