Re: [gardeners] Bathtub gardens
Liz Albrook (gardeners@globalgarden.com)
Wed, 26 Aug 1998 08:01:23 +0000
TAREE9595@aol.com <gardeners@globalgarden.com> wrote:
> Im not sure if you are planning on putting the gravel and sand in
> and then some soil? So I just want to mention that water does not go
> from one soil type to another when its stratified until the top
> layer of soil is VERY saturated. So what ever you use I would
> suggest not layering it.
The drainage of the top layer is very much dependent on the nature of
that layer -- much more than on the nature of the layers under it
unless those layers have poor drainage properties. Gravel and sand
are ideal underlayments for a fast draining mix.
Liz