Re: fake rocks

Hi Denise,

You may be thinking of Hyper-tuffa which is used mainly to make pots or
troughs, that in many cases are buried in gardens and used in alpine houses
to house rock ferns.  It sometimes has been used to make rocks.  It works
best for lime lovers like the A. capillus-veneris previously discussed,
which grows beautifully in one.

The basic recipe is one part Portland Cement, one part sand and two parts
peat moss.  The mixture is wetted enough to just stick together well.  There
are a lot of variations like using perlite to replace sand and reduce weight
and also varying the ratios of the ingredients which has an effect on
appearance and strength.

If you send me your email address off fernet, I will send you an email copy
of an article on Hyper-tuffa pots I wrote for the Hardy Fern Foundation
Bulletin a while back.

If you decide to mix up a batch, be sure to wear a dust mask and eye
protection like goggles.  The dust from sand or Portland cement is not to be
treated lightly at any time, but is especially dangerous when combined.
They can mess up lungs and eyes individually or jointly!!

Ralph in Louisville, KY USA
ralpharcher@bellsouth.net

----- Original Message ----- 
From: "Denise" <101989@lizzy.com.au>
To: <ferns@hort.net>
Sent: Saturday, June 24, 2006 8:45 AM
Subject: [ferns] fake rocks


> Hello to fellow fernies,
>
>   Does anyone know how to make 'fake rocks' for fern gardens???  I found
some
> sites on net but you need to join a forum or buy a video.  So if anyone
knows
> of the basic ingredients to have a play around with.
>
> regards
>     Denise
>
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