"M" [email protected] wrote in message
...
During the Winter my Camelia had all green leaves but looking at it today
the top area leaves are turning yellow.

There are buds on the Camelia and I am wondering if I should now feed the
plant. The liquid feed that I use says to start in March. Also should I
remove the yellowing leaves ?

I have a link to pictures
http://tinyurl.com/frtzv

Apologies for the quality but best I could manage from the camera.

M

I'll only repeat what Sacha suggested about trying sequestrene.
With acid loving plants, too much lime locks out the iron in
the soil (or something like that ) and the sequesetred iron
is recognised as a good tonic for all such plants in less
than ideal conditions.

quote

Here's some more information from a(n Australian) website

quote

Iron Deficiency

Iron deficiency (Fe), or lime-induced chlorosis, is often caused by an
alkaline soil (high pH). As the pH of the soil increases above 6.0, the
availability of iron to the plant gradually decreases. A wide range of
ornamentals including both Australian native plant species and introduced
species is affected by iron chlorosis (see Table).

Importance of iron
Iron is needed by all plants. It is an essential precursor for the formation
of chlorophyll, which gives plant foliage its green colour. Chlorophyll is
an active element in photosynthesis, a process which allows the plant to
grow, mature and produce flowers. Iron is also important for normal activity
of enzymes involved in plant respiration.

Symptoms of iron deficiency
Plant growth and vigour are reduced when the iron supply is limited. Since
iron is not easily translocated within the plant, the symptoms of reduced
green colour, due to less chlorophyll production, appear on the new leaves.*
^^^^^^^^^^^^^^^^^^^^^^^
The visual symptom on these new leaves is interveinal chlorosis, or
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^
yellowing of the plant between the leaf veins. In severe cases the entire
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
leaf may be white. This symptom is similar to that caused by magnesium
deficiency but iron deficiency is exhibited on the younger leaves, while
magnesium deficiency is exhibited on the older leaves. Symptoms of iron
deficiency tend to be more pronounced during winter.

Causes of iron deficiency
Iron deficiency does not only occur in alkaline soils but very often
develops in acid soils, frequently limiting the growth of such acid-loving
species as azaleas and rhododendrons. This condition may result from an
accumulation of the heavy metals, copper, manganese and zinc, relative to
the amount of iron present.

http://tinyurl.com/mrdsu

for -

http://www.dpi.vic.gov.au/dpi/nrenin...ddocs/-71E8091
F577D52D24A2568B30004F3B2-F35B1CAC4054922BCA256BC8000291D4-7
CBD1D972BE5DD0D4A256DEA0027411F-1A0F1867E007236CCA256BCF000B
BF35?open

/quote

* this should possibly aid identification.

And sequestrene which contains sequestered or chelated iron
(no more Googling tonight) is recognised as a good remedy.
Many purveyors of seaweed feedd claim it contains chelated
iron as well, but that maybe needs further confirmation.

Although it does cost a bit. Your
pictures are fine IMO. If you use a site called Tinypic
http://tinypic.com/
you can host your photos from there. You just browse on
your computer to where the individual picture files
are, and upload them from there. The display times
are usually much faster as a result.

michael adams



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