Laurel has developed yellow leaves, why?

A year ago we planted a Cherry Laurel hedge on both sides of our garden.
One side is perfect growing really fast, the other side growth is very slow and some of the Laurel have all their leaves yellow.
The soils are very different on each side. The side with the failing Laurel I would have described as having 'perfect soil', the side with the most growth had terrible soil.
It seems the Laurel doesn't agree with me :-)
The side where the Laurel has done well had soil with builders rubbish, sand and all sort of junk in it (it took a lot of back breaking to plant them).
The side where the Laurel is failing has really rich 'proper' soil.
I've read of so many conflicting 'deficiencies', can anyone help me find out how to get the Laurel to grow?
Many thanks ben
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Your Laurel may have an iron deficiency (called Iron Chlorosis). This is normally treated by watering with a chelated iron mixture (the concentrate is available at Home Depot, your garden center etc..).
If you've disturbed the roots by transplanting that could also be the cause.
Some leaves on Laurel normally turn yellow in the Fall, which is of no concern.
Mitch
benl wrote:

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.