On 25/03/2013 14:23, Pam Moore wrote:
On Mon, 25 Mar 2013 08:28:46 -0000, "Muddymike"
wrote:

I've just had an email offering me

"J Arthur Bowers Multi-Purpose
Compost with added John Innes 35ltr"

What exactly are they adding extra of? I always understood John Innes to be
a formula which changed for different plantings.

Mike

More than one TV gardener has said they use half and half multipurpose
mixed with JI. I've done the same. Best of both worlds.

Pam in Bristol

As regards using crocks/
polystyrene in the bottom of pots. There was and interesting article in
Saturdays Telegraph Gardening Supplement. it would seem the only
advantage is the use of less compost.