polyxena ensifolia

Peter Taggart petersirises@gmail.com
Tue, 06 Nov 2012 13:04:55 PST
In Britain the builders often use fine sand for brick laying. It is
sometimes called 'soft sand'. It allows for a very thin cement layer
between bricks, and makes a very smooth and pliable cement.
Here 'coarse sand' is also called 'washed sand' or 'concrete sand'.
For horticultural use it is very important that these two products are not
Peter (UK)

On Tue, Nov 6, 2012 at 7:41 PM, Hans Huizing <hanshuizing@home.nl> wrote:

> Hi Rimmer,
> My mix:
> 2 parts of Pumice. (1-4 mm)
> 2 parts course sand. (the sand the builders use for bricklaying).
> 2 parts of stone chippings (1-4 mm)
> 1 part of a good quality cocopeat.
> For the more sensitive species (for example Cyrtanthus smithii) I skip
> the cocopeat.

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