Re: Potting mixes

One or 2 people have mentioned fertilizer crashes in commercial potting
mixes.  I'm wondering if this could explain a problem I've had with several
different brands.  Before reading the posts, I had narrowed down my
theories to two main ones: too much fertilizer, or too little!

The symptoms are lack of growth (especially in seedlings), and eventually
leaves turning a bright red and the plant dying.  This can take up to 6
months.  The stunted growth and slow decline would lead me to think there
was a crash... if the immediate problems with seedlings when the soil is
fresh weren't making me think there was too much fertilizer to start with.
 Maybe too much  and too short-lived?

I don't think it's an acid/base problem, because it affects such a wide
range of species. I sure would appreciate any suggestions or theories.

TIA,
Susannah
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