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RE: Pale Leaves - Reply

Though pale leaves with green veins are a sign of iron deficiency, 
chlorosis is usually a problem where soils are alkaline.  The iron may be 
in the soil, but the high pH "locks" it up.  Most soils east of the Miss 
are neutral to acid.  Before adding iron and sulfur, I would (and did) 
have a soil test.

A few years ago I noticed this pale leaf syndrome on a few of my roses. 
 After testing the soil and finding it to have a slightly acid pH and 
plenty of iron, I went to the local extension office for suggestions.  The 
most probably cause in my garden was saturated soil, which decreases the 
oxygen available to the plants.  The first year I noticed the problems we 
were having exceptionally heavy rainfall, 5 or more inches in a few hours.

Marlynn, have you had more than average rainfall this year?  We have over 
here in Illinois and I am again noticing the problem on some of the 
rugosas as well as other plants.

Lynn, Z4b
hlbarton@execpc.com

On Wednesday, June 24, 1998 5:08 PM, C. Walworth 
[SMTP:cwtwo@cyberhighway.net] wrote:
> Marlynn Marcks wrote:
> >
> > Does anyone know what could be causing my Blaze climbers to have
> > yellow
> > leaves with green veins?  The lightest leaves are at the top and
> > sometimes are almost white.  Where the leaves are yellow the blossoms
> > are also lighter.  These are 8 years old and haven't done this before.
> > Marlynn Marcks
> > zone 6 Michigan
> >
> >
> iron iron iron. but you've gotta add sulpher for them to use it. Cathy,
> CR, zone 6a.
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