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MarkNature
MarkNature EDDHA-Fe6 Iron Chelate Fertilizer

MarkNature EDDHA-Fe6 Iron Chelate Fertilizer

Best price now

$188.00at MarkNatureObserved at 9:57 PM

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Our take on the MarkNature EDDHA-Fe6 Iron Chelate Fertilizer

MarkNature EDDHA-Fe6 is a water-soluble iron chelate fertilizer in powder or granule form, sold in 1 kg packs. The label lists 6% ±0.4 iron as EDDHA-Fe6, the ortho-ortho isomer chelate that keeps iron available to roots in alkaline and high-pH soils where plain iron sulfate locks up. It is applied to soil or as a foliar feed on ornamentals, arable and horticultural crops, and it is odorless. The best new price is $188 at MarkNature as of November 7, 2026, the only new listing found, so there is no recent price range to compare it against.

Best forGardeners with alkaline or high-pH soilOrnamental and horticultural crop growersCorrecting iron chlorosis (yellowing young leaves)Soil drench and foliar feeding programs
Pros
  • EDDHA-Fe6 chelate stays available to roots in alkaline soil
  • 6% iron content, stated as 6% ±0.4
  • Works as a soil application or a foliar spray
  • Odorless powder or granule, easy to measure and mix
  • Suited to ornamentals, arable and horticultural crops
Cons
  • 1 kg at $188 is a high price for a home garden quantity
  • Only one new listing found, so no price competition
  • EDDHA chelates are not the cheapest iron source for acidic soils
  • No measuring scoop or dosing guide stated in the specs
  • Granule and powder forms may not dissolve equally well for foliar use

MarkNature EDDHA-Fe6 Iron Chelate Fertilizer prices at every store

  • MarkNatureNew

    In stock

    $188.00Observed at 9:57 PM
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MarkNature EDDHA-Fe6 Iron Chelate Fertilizer price history

Lowest price we've seen: $188.00 on Nov 7 at MarkNature. Tracked across 1 store since Nov 7.

Specifications

Type
Iron Chelate Fertilizer
Primary Use
Fertilizer
Soil Type
Diverse soil conditions
Form
Powder, Granule
Quantity
1 kg
Item Weight
1 kg
Coverage Area
10 m2 (60 grams per 10m2)
Active Ingredients
Iron Chelate, EDDHA-Fe6, Iron [Fe] (6%±0.4)
Container Size
1 kg
Effect Duration
Sustained iron uptake
Effect Highlights
Iron Deficiency Correction
Effect Speed
Acts swiftly to address iron deficiencies
Micronutrients
Iron
Packaging Size
1 kg
Scent
Odorless
Texture
Powder, Granule
Suitable Application Site
Hydroponic setups
Suitable Plant Type
Ornamental crops, Arable crops, Horticultural crops
Application Method
Foliar nutrition practices, Soil application through traditional methods

Questions and answers

What is EDDHA-Fe6 and why does it matter?
It is an iron chelate using the ortho-ortho EDDHA isomer, which keeps iron soluble and plant-available in alkaline and calcareous soils. Plain iron sulfate and weaker chelates can lock up at high pH, leaving plants yellow.
How much do I use per area?
The listing gives about 60 grams per 10 m², so a 1 kg pack covers roughly 165 m² at that rate. Measure by soil volume and crop need rather than area alone, and start lower on sensitive plants.
Can I spray it on leaves as well as apply it to soil?
Yes. The label lists foliar nutrition and traditional soil application. Foliar sprays act faster on visible chlorosis; soil drenches last longer because the chelate stays in the root zone.
Will it fix yellow leaves on my plants?
It targets iron deficiency, which shows as yellowing between the veins of young leaves while older leaves stay green. If the yellowing comes from overwatering, root damage or nitrogen shortage, iron will not fix it.
Is $188 a good price for 1 kg?
It is the only new price found, $188 at MarkNature as of November 7, 2026, so there is no cheaper listing to compare. EDDHA chelates cost more than iron sulfate, but check the ortho-ortho isomer share before judging value.
Is it safe for hydroponic setups?
The listing names hydroponic setups as a suitable site. EDDHA is more often used in soil because it is stable at high pH; in recirculating water, dose carefully and watch for staining and residue.
Where is the MarkNature EDDHA-Fe6 Iron Chelate Fertilizer cheapest?
At MarkNature, for $188.00, as of our latest check.
Where can I buy the MarkNature EDDHA-Fe6 Iron Chelate Fertilizer?
2 stores we checked sell it, including MarkNature, eBay.