Plant Doctor Liquid Iron Fertiliser - 7% Iron; 3% Sulphur [size: 1L]

Supercharged with Fulvic Acid

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Plant Doctor Liquid Iron Fertiliser - 7% Iron; 3% Sulphur

Supercharged  with Fulvic acid

Provides a highly available form of liquid Iron (Fe) with Sulphur to produce rich green colour in leaves & help correct to iron deficiencies in your lawn, plants & crops.

The added Fulvic Acid will ensure quick uptake of the nutrients to provide fast results.

  • Can be applied to the leaves (Foliar) or directly to the soil.
  • Will help maintain plant growth & deep green colour in turf & plants.
  • Can be mixed with most other liquid applied products, do a small “jar-test” first.
  • Will help correct yellowing in new leaf growth.

Iron (Fe) is a vital micro-nutrient required by plants in order to form chlorophyll. And chlorophyll is what gives plants/lawn their green colour. Iron deficiency occurs when there is either not enough iron in the soil, or the iron is tied up and unavailable due to high pH (alkaline soil), or poor aeration. It can also be induced by an over-abundance of calcium in the soil or an over-application of lime.

Iron chlorosis is the name of the condition found in plants that are iron deficient. It is one of the most common micro-nutrient problems of ornamentals, shrubs, vines, small fruits, and trees. Leaves of affected plants are yellow, light green, or white with distinct green veins.

Application rate:

Minimum dilution rate: 1:50







Apply every 4-12 weeks.

Ornamental Plants

10-25ml/10litres water


Apply every 4 weeks in growing season or as required.




Apply fortnightly or as required.

Trees, Fruits, Nuts & Grapevines



Apply every 8-12 weeks or as required.

Broadacre crops


Apply as required with normal program


Iron (Fe) = 7%

Sulphur (S)= 3%



Do not spray in hot weather conditions

Iron can stain paths, concrete, paving, clothes and skin, so always wear old clothes, wash hands after use and be careful when applying near concrete and paths etc. Wash off immediately any lasting damage. Keep away from water sources such as ponds, pools etc.

Iron deficiency in many plants & lawns is an indication of high pH or alkaline soil. If yellowing persists or returns rapidly after treatment, soil pH should be checked and adjusted if necessary.

Follow application directions as excess liquid iron can lead to other problems, such as zinc and manganese deficiencies. While liquid iron provides immediate relief for plants & soil, it is not an adequate long-term solution for an iron deficiency. Keeping plants/Lawn in well-drained soil amended with sulphur to reduce the pH level can help iron in the soil become more available to plants.


Green is an understantement

By: on 11 September 2019
Lawn just absolutely popped after a week of this stuff, great application rates too

Green and Mean

By: on 20 August 2019
Never had my lawn looking greener. Great Product that mixes well with out Plant Dr liquids!

So Green

By: on 19 August 2019
I have never used liquid iron before, and now I won't be able to live without it! Can't believe how green my lawn now is. This is a great product and is well worth the money.

Next Level Green

By: on 11 August 2019
Certainly the product to use if you are looking to get your lawn a beautiful dark green. Easy to use and great results overall.

Another fantastic P.D product

By: on 23 June 2019
Easy application. I mix it with Seaweed secrets, activ8mate and stimulizer on my lawn. The lawn is loving it. Giving it just that extra protection over the frosty winter months.

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