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 weeks in growing season or as required.

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 6-8 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.


Really Greens up the Lawn

By: on 8 February 2019
Used this liquid iron on my Sir Walter Buffalo and REALLY Greened it up within a week...was really impressed with the results as have used other products in the past but this particular one is the one I will be sticking to. Great Product and would highly recommend its usage in conjunction with other products from plant doctor!

Neighbours green with envy!

By: on 30 January 2019
Product performs as stated. I used the lowest dosage recommended and it's greened up the lawn immensely a week in, can't wait to add to my regular lawn care schedule. I'll be happy to stay on the lower doses, which means incredible value for money for me!

So Green has to be Seen

By: on 2 January 2019
This beast has made my buffalo look like a its been painting with a dark green crayon. Used a mid strength application and boy did it bring the colour alive. Its like I'm wearing polarised sunnies or looking at my grass on a HDR OLED TV.


By: on 18 December 2018
love how well this product darkened up my couch, seen results within 2 days using 150ml over 100m2

great stuff

By: on 17 December 2018
I highly recommend this product its easy to use and greened up my lawn really nicely

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