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Jun 1, 2018 2:30 PM CST
Thread OP
Huntsville, AL
i'm growing several varieties of blueberry plants in the backyard, but suddenly the pink lemonade ones have started turning yellow on the new growth, with green only visible around the veins of the leaf.

I've been treating them with chelated iron, but there's been no effect. (!)

The pictures tell a terrifying story.

Any ideas what could be wrong? How do i treat this if chelated iron is not having an impact?

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Jun 1, 2018 2:54 PM CST
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
You should only have to add iron chelate once in early spring. If its not working, I would guess that the pH of your soil is too high making the iron unavailable to your blueberries. Are you top dressing with milled peat moss every year? I think I would water in some ammonium sulfate (or other acid fertilizer) and see if that helps.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Avatar for Nullthumb
Jun 1, 2018 3:05 PM CST
Thread OP
Huntsville, AL
I've been using Epsoma soil acidifier for a few weeks. Does it take longer to take effect?
Jun 1, 2018 3:25 PM CST
Name: Sue
Ontario, Canada (Zone 4b)
Annuals Native Plants and Wildflowers Keeps Horses Dog Lover Daylilies Region: Canadian
Butterflies Birds Enjoys or suffers cold winters Garden Sages Plant Identifier
Do you know what your soil pH is and therefore how much it needs to be lowered? High pH can block manganese (not magnesium) as well as iron, and going too high on iron can also negatively affect manganese availability. Manganese deficiency produces similar symptoms to iron deficiency, i.e. green veins but paler in between and starting on the youngest leaves. The Espoma, as far as I can tell, is sulfur which is the recommended treatment for lowering soil pH but it may take a while to work.
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