PLEASE NOTE THIS ITEM IS 200L IN A BARREL. FORKLIFT DELIVERY FOR A PALLET IS REQUIRED AND FOR COMMERCIAL PREMISES ONLY. MADE TO ORDER – PLEASE ALLOW 2 WEEKS FOR DISPATCH. CAN NOT BE DELIVERED TO RESIDENTIAL ZONES.
MaxGreen by Plant Doctor is a premium, science-backed liquid fertiliser delivering highly available iron (Fe) and nitrogen (N) for vigorous, deep green foliage. Enhanced with fulvic acid for superior nutrient uptake, MaxGreen quickly corrects iron chlorosis, supports strong plant growth, and integrates seamlessly into professional turf, horticulture, and orchard nutrition programs.
Designed for large-scale applications, MaxGreen performs under challenging conditions, including high-pH soils, calcium-rich profiles, and nutrient-deficient environments.
Turf & Lawns (Buffalo, Couch, Kikuyu, Zoysia)
Gardens, Ornamentals and Shrubs
Farms, Orchards, and Vineyards
Iron is an essential micronutrient required by plants for the production of chlorophyll, the green pigment that drives photosynthesis. Without enough iron, plants cannot effectively produce chlorophyll, which results in iron chlorosis, a condition marked by yellowing leaves with prominent green veins. This condition is common in lawns, fruit trees, shrubs, and ornamentals, especially in soils that are alkaline, compacted, waterlogged, or high in calcium.
MaxGreen delivers liquid iron in a highly available form, immediately absorbable by plant roots and foliage. What sets it apart is its inclusion of fulvic acid, a natural organic molecule known for its chelating and transport properties. Fulvic acid binds with nutrients like iron and nitrogen, protecting them from being locked up in the soil and helping them cross plant cell membranes more efficiently. This means plants absorb more, faster, especially under conditions where nutrients are usually unavailable.
Nitrogen (N) in MaxGreen supports lush leaf and shoot development, while sulphur (S) plays a role in protein synthesis and enzyme function. The synergy between these three nutrients, iron, nitrogen, and sulphur, improves plant colour, vitality, and growth rate, especially in stressed or nutrient-deficient conditions.
Together, the bioavailable iron, nitrogen, sulphur, and fulvic acid in MaxGreen create a powerful, fast-acting formula that revitalises tired, yellowing plants and keeps your lawn and garden thriving.
| Attribute | Details |
|---|---|
| Type | Liquid Iron & Nitrogen Fertiliser |
| Key Nutrients | 5% Iron (Fe), 16% Nitrogen (N), 2% Sulphur (S) |
| Enhanced With | Fulvic acid for faster nutrient uptake |
| Application | Foliar spray, soil drench, fertigation |
| Ideal For | Lawns, turf, gardens, orchards, vineyards, ornamental shrubs |
| Compatibility | Avoid incompatible blends; always perform jar test; not compatible with humic based products |
| Origin | Made in Australia |
| Environment | Eco-friendly, sustainable |
Do not spray in hot weather or windy conditions.
Iron will stain paths, concrete, paving, clothes and skin, so always wear old clothes and gloves, wash hands after use and be carefully precise when applying near concrete and paths etc. Keep away from water sources such as ponds, pools etc. Can cause drying or mild irritation to skin - Rinse with water if contact occurs.
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.
DO NOT SWALLOW. Product may act as an irritant. Avoid inhalation and contact with the eyes & skin. Keep out of reach of children. Store sealed in a cool place.
PLEASE NOTE: THIS PRODUCT MAY FORM SOME SOLIDS THAT CAN BLOCK FINE NOZZLES, MAY HAVE TO STRAIN PRIOR TO FILLING IF CONCERNED. NOT compatible with humic based products.
(MG_BARR)
Iron products can have an adverse reaction with our darker liquids. To avoid blockages in sprayer nozzles, we recommend applying the Iron separately to other products. (Stimulizer is safe to mix with Iron). If attempting to mix together, try a jar test in the ratios you want to apply them in first. Iron should always be added last after all other products are diluted with water.
Applied separately at various frequencies allows you to tailor nutrient input based on the soil/plant/lawn's requirements and condition.
| Category | Application Rate | Frequency |
|---|---|---|
| Turf/Lawn Ornamentals | 150-400ml per 100sqm 10-25ml per 9L |
Monthly in growing season |
| Vegetables | 150-300ml per 100sqm | Fortnightly |
| Trees, fruit, nut, grapevines | 150-300ml per 100sqm | 6-8 weeks or as required |
| Broadacre | 15-40L / Ha | Per program |
Shake well before use. Lightly water in. Apply separately to other products.
Max Green performs best when lightly watered in after application to move nutrients into the soil, though foliar uptake begins while leaves are wet. Environmental factors such as wind, temperature, and soil pH can affect results. Apply during calm, dry conditions for optimal performance.
For commercial use, apply Max Green separately. It is compatible with Stimulizer, but mixing with other fertilisers or foliar liquids may reduce efficacy or cause reactions. Always conduct a jar test when testing new combinations.
Max Green is a high-nitrogen, iron-rich liquid fertiliser that quickly greens turf, strengthens leaf growth, and corrects iron deficiencies. It enhances colour, vigour, and overall lawn health for commercial and large-scale landscapes.
Frequency depends on grass type, climate, and soil. Professional operators typically apply every 2–4 weeks during the growing season, or as required to maintain deep green colour and healthy growth.
Follow site-specific rate guidelines and tank dilution protocols. Rates vary depending on turf density, grass type, and delivery system. Always refer to the label or technical sheet for precise calculations.
Visible greening is usually observed within 24–48 hours, depending on soil, weather, and plant condition.
Yes. It is safe for all common Australian turf species including buffalo, couch, kikuyu, and zoysia.
Apply in the cooler parts of the day—early morning or late afternoon—to reduce stress and leaf burn. Light irrigation post-application can improve absorption in warmer conditions.
Yes. Once applied and allowed to dry or lightly watered in, treated areas are safe for children, pets, and livestock.
Best applied during active growth periods—spring, summer, and early autumn. Avoid using during dormancy in winter for cool-season turf.
Help other Plant Doctor Pty Ltd users shop smarter by writing reviews for products you have purchased.
First time owning lawn. Gave the team at plant doctor a ring and they supplied me with a wealth of information. Products turned up quickly.
Will definitely be getting more 8 weeks difference been using stimulizer, activ8mate, soil wetter, seaweed secrets and champion fertiliser. Was super fast delivery.
Only have great things to say about Plant Doctor. Organic products and a competitive price, fast shipping and easy to contact with questions. Have had great results with the special mix for lawns, and my plants (indoor and outdoor) love the seaweed secrets. I am excited to test out some of the animal products soon!
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