Was Cardamine hirsuta Sterilising potting mixture

Peter Taggart petersirises@gmail.com
Wed, 10 Apr 2013 01:00:47 PDT
I agree with Dylans stance on this, However there are electric sterilisers
available which can provide a little heat if used in the green house in
winter. The soil to sterilise is old potting soil or soil infested with
unwanted desieses, plants or seeds.
Peter uk

On Wed, Apr 3, 2013 at 11:49 PM, Hannon <othonna@gmail.com> wrote:

> Agreed with Russ that one should be cautious in "sterilizing" potting
> media. The clean slate so created invites all comers, from beneficial to
> pathogenic. Better to pasteureize at lower temps to redue the chance of
> catastrophic outbreaks. For seeds I use a mix of perlite, coarse builder's
> sand and an off-the-shelf organic component like peat or Edna's at roughly
> 2:1:2 respectively. Some fine charcoal is also beneficial. None of these is
> exactly sterile but they are clean enough. It is impossible to know if
> outbreaks of pathogens are in the soil to begin with or have blown in from
> afar.
> Dylan

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