Re: Eggshells & Greenhouses

From: Dave Evans (dpevans@rci.rutgers.edu)
Date: Fri Oct 27 2000 - 18:28:31 PDT

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Date: Fri, 27 Oct 2000 21:28:31 -0400
From: "Dave Evans" <dpevans@rci.rutgers.edu>
To: cp@opus.hpl.hp.com
Message-Id: <aabcdefg3138$foo@default>
Subject: Re: Eggshells & Greenhouses

Dear Nigel,

I have been growing Nepethes in the same soil for 5 years. Most of that
time I used hard tap water. When I switched to RO, some plants like Drosera
really liked this, but the Nepenthes and Pinguicula haven't shown a
preference.

Dave Evans

> Most people go to great lengths to get rain or RO water for their CPs
> to avoid the calcium salts in tap water, so would be very dubious about
> deliberately adding calcium to the growing mix. However I seem to
> remember a lecture at which it was strongly implied that calcium played
> a part in the massive growth surge that causes Venus' Fly Traps to
> shut. Does anyone know of any formal findings on this subject?

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