Usually, gradual fading of green color beginning at the junction between
leaf and pb, and progressing up the leaf. But if you are applying Cal-Mag
regularly, I doubt that's your problem [assuming it's a problem].
Red/purple "discoloration" has almost always been, in my experience, either
"suntan/sunburn" depending on one's definition, or minor cold damage [hard
to imagine, this time of year, at least for me here in still very warm south
Florida].
--
Kenni Judd
Juno Beach Orchids
http://www.jborchids.com
"Pat Brennan" wrote in message
...
Hey Kenni,
How does a magnesium deficiency show its ugly face? Does it come on fast?
We use a lot of Cal-Mag fertilizer here and I do not think I have ever
seen
it.
Pat
"Kenni Judd" wrote in message
.. .
From sunny south Florida -- are you sure you have a problem at all?
Around
here, we consider a bit of pigment showing in the foliage to be a
"healthy
suntan." I have one client who was keeping her [one live] den with her
phals, and then complaining that they never bloomed ... I moved it out
into
brighter light, it started showing some red-purple in the foliage, and
promptly put on an incredible growth spurt.
The most common nutrient deficiency that we see is magnesium, and
applying
a
bit extra [preferably chelated, but in a pinch Epsom Salts will do] will
help to green up both pale and reddened foliage.
Good growing,
--
Kenni Judd
Juno Beach Orchids
http://www.jborchids.com
"Dave Gillingham" wrote in message
...
Thanks for your response, Ray.
After checking out "Plant Nutrition" on your website, I assume my
problem may be low phosphorus?
If so, will a higher P fertiliser reverse the colouration, or only
improve it for new growth?
On Mon, 20 Oct 2003 16:23:42 -0400, "Ray"
wrote:
I have a brief description of the functions of, and symptoms of
mineral
deficiencies posted - check out "Plant Nutrition" under the Free Info
link
at the URL below.
Dave Gillingham
--------------------------------------------------------------------------
----
To email me remove the .private from my email address.