Irises forum→General Question: Chelated Iron

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Name: Mary
Tennessee (Zone 7a)
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urania1
Jun 2, 2020 6:52 PM CST
Because of the excessive rain, a number of my plants (not the irises) have chlorosis ... I think. I have read that one needs to apply chellated iron. A French is a quick easy fix. But really, everything I have read says a soil application is best for long term results. Have never used before, so I have the following questions. Can the quick easy fix be done at the same time as the longer fix?
Name: Laurie
southeast Nebraska (Zone 5b)
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lauriemorningglory
Jun 2, 2020 9:01 PM CST
If the chlorosis is due to heavy spring rains, it is likely only a temporary condition, and should correct itself after the soils have had some time to drain and re-aerate.

I'm not sure what a "French" is?
Name: daphne
san diego county, ca (Zone 10a)
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shizen
Jun 2, 2020 9:34 PM CST
if you need a quick fix chelated iron can be sprayed foliarly. the pelleted form for longer lasting methods doesn't work as quickly, though.

however, i really like and use 'dr. green' liquid, but it leaves an unsightly black mess on the leaves if sprayed. i haven't been able to find 'dr. green ' of late and have resorted to 'monterey dr. iron' in pellet form. (unfortunately, i threw away the last gallon of 'dr. green' so i don't know who the manufacturer is, and the nursery where i purchased it, is no longer open.☹️

there are a few liquid products out there, i don't know if they can be sprayed. but i am sure they can be mixed, and poured around the plants.
NE Oregon (Zone 7b)
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TBManOR
Jun 5, 2020 6:48 PM CST
An application of Ironite would be a good start, IMHO. Easy to apply granule, but follow the label closely - too much can cause temporary phytotoxicity.

Another good source of iron would be Azomite, a ancient seabed mineral with many other micronutrients beside iron. Soil tests usually show a more or less, a deficiency in magnesium too, along with a iron deficit. Usually clay soils ( which are mostly commonplace in the SE U.S) have enough of the micro nutrients, but a very low p.H can lock up iron too. You might get your soil's p,H tested too.

Many times, in very acid soils, a timely application of dolomite lime will correct a chlorotic issue, and a magnesium deficiency too.

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