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  • Fulvic Acid Liquid - a powerful bio stimulant
Fulvic Acid - 1L

Fulvic Acid - 1L

Liquid powerful bio stimulant

$19.95
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Product Description

The Missing Link for Healthy Soil & Thriving Plants

A cost-effective, premium fulvic acid formula trusted by hydroponic and professional growers across Victoria, Queensland, and NSW.

Fulvic acid is a natural, powerful nutrient booster that delivers immediate nourishment to both plants and the essential microbes in your soil. It promotes strong root growth, unlocks vital nutrients locked in the soil, and helps plants resist disease and stress, making it one of the most valuable inputs for creating balanced, fertile soil and vigorous plants.

Why use Fulvic Acid

 

  • Boost nutrient absorption for healthier, faster-growing plants
  • Control root rot diseases like Pythium under certain conditions
  • Increase uptake of foliar fertilisers, herbicides, and pesticides
  • Stimulate root development and improve access to soil nutrients
  • Improve soil moisture retention and water use efficiency
  • Detoxify harmful soil pollutants, including heavy metals and chemical residues
  • Stabilise nitrogen fertilisers like urea for longer-lasting effects
  • Strengthen plant immunity and increase yield potential

Where to use Fulvic Acid: 

Lawns (Buffalo, Couch, Kikuyu & More)

  • Enhance grass root growth and nutrient absorption
  • Promote lush, green, drought-resistant lawns
  • Improve recovery from stress, wear, and disease
  • Compatible with popular grass types like buffalo, kikuyu, and couch

Gardens (Veggies, Flowers, Trees, Pots)

  • Boost nutrient uptake in garden beds, pots, and lawns
  • Improve seed germination and root development
  • Support soil microbes that break down organic matter
  • Help plants resist stress and disease by improving nutrient availability

Farms & Larger Properties

  • Chelate soil minerals, making nutrients more accessible
  • Detoxify soil from pesticide, herbicide, and heavy metal residues
  • Stabilise nitrogen fertilisers like urea for longer-lasting effects
  • Improve soil fertility in areas with low organic carbon
  • Compatible with acidic or alkaline soils and a wide range of fertilisers

Fulvic acid is compatible with most liquid fertilisers, soil conditioners, and foliar sprays, making it a versatile addition to your plant nutrition program. It works best when used as part of a balanced feeding routine to enhance nutrient availability and overall plant health. This product is suitable for a wide range of growing systems, including hydroponics, soil-based gardens, and broadacre agricultural applications. To ensure optimal results and avoid any compatibility issues, always perform a small trial when introducing fulvic acid alongside new products or application methods.

The Science Behind Fulvic Acid

Fulvic acid is a naturally occurring organic acid formed from the decomposition of plant and microbial matter. Its unique small molecular structure allows it to:

  • Act as a powerful chelating agent, dissolving minerals and trace elements so plants can readily absorb them
  • Rapidly enter plant membranes (often within 4 hours), delivering nutrients efficiently
  • Enhance photosynthesis by increasing stomatal opening, especially helpful in cloudy or low-light conditions
  • Promote beneficial soil microbial activity, improving nutrient cycling and soil health
  • Detoxify soils by binding to pollutants like pesticides, herbicides, and heavy metals, reducing their toxicity
  • Stabilise urea and other nitrogen fertilisers when applied to soil, reducing nutrient losses
  • Stimulate root growth, cell elongation, and division, contributing to stronger, healthier plants

Often called the ‘missing link’ in plant nutrition, fulvic acid supports soil and plant systems in ways that other fertilisers cannot.

Product Summary  Details
Type Natural Fulvic Acid Liquid
Function Soil nutrient chelator & microbial stimulant
Compatibility Acidic & alkaline fertilisers and soil types
Best For Low organic carbon soils, hydroponics, farms, gardens
Origin Naturally derived, sustainably sourced

 

Fulvic acid is the key to unlocking soil nutrients and promoting plant vitality. Whether you're a hobby gardener or commercial grower, incorporating this powerful natural chelator into your fertiliser program helps ensure your plants get the nutrition they need to thrive — healthier roots, stronger growth, and improved resilience to stress.

Safety Guidelines

Keep out of reach of children. Non-toxic and safe for plants, animals, and the environment. Store in a cool, dry place, away from direct sunlight.

(414)

Product Application

Application Rates

Can be used at any time of the year on all soil types which grow plants; turf, lawns, golf greens, all home garden plants, sandy and clay soils, pot plants, vegetables, and fruit trees.

Application Method Mixture/Rate
Hydroponics 1800ml to 1000 Litres of water
Foliar (Turf) 1450ml to 1000 Litres of water, fine mist until run off
Foliar (Vineyard) 2000ml to 1000 Litres of water, fine mist until run off
Broad Acre 3900ml to 1000 Litres of water per hectare via boom spray
Home Garden 15ml per watering can
Dilution Rate 1450-2000ml/1000 litres
  Apply weekly or fortnightly, as required.

Fulvic Acid is compatible with most inputs, however always jar-test before mixing.

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Amount of Reviews: 13

Fulvic Acid

By: Julius on 4 April 2025
Excellent product for getting a healthy soil just smells so sweet just like your soil should.Very fast delivery and great price.Thank you Plant Doctor

Most affordable chelating agent

By: Lucas on 2 July 2024
Can't find other organic chelating agent that's cheaper than this

Another good addition to my garden

By: Dario on 7 May 2024
Wonderful to see the results! Every single product from here has been a massive game changer for the overall health in my garden.

Best Food for my indoor plants

By: Mary on 14 April 2023
During heat of summer, my plants suffered a lot, I purchased this and added to a normal seasol and it made a big difference to my plants. Now when my plants need a boost, I add a little bit more of this to my seaweed secret and it's just amazing results.

THIS IS WHAT IVE BEEN MISSING

By: Zac on 15 March 2023
THIS IS WHAT I'VE BEEN MISSING, the fulvic acid is a GAME CHANNGER, it has honestly completely changed my lawn, it was the missing link in my routine.

Folic acid liquid

By: Jason on 22 July 2022
Folic acid liquid great price, exceptional product..

Urea Stabiliser

By: Colin-John on 12 May 2022
I'm using this to stabilise urea in my lawn and reduce dog damage, looking forward to some great results.

Beat the lacking lawn

By: Aiden on 26 December 2021
Began using this product to give the lawn/soil the best nutrition i could and wow its worked a tread its over the standard plato and heading into stunning high class lawn.

Great product

By: Nick on 23 December 2021
Really notice the difference since using this product stops the wilt!!

Great additional mix to add on top ben sim mix

By: Anferny on 9 August 2021
Wasn't sure how at the start how this product would work on the lawn and vegetables garden. So decided to add about 25ml in each of my Ben sim mix. Can see great result in the rooting of the plant and lawn. So would definitely recommend to add this product in their range as well.

Good Price

By: Wasim on 23 March 2021
I went to my local Bunnings and the "horticulturist" didn't know what fulvic acid is. I found it on the Plant Doctor website with good pricing, so I decided to buy in bulk. 20L is a lot more than I thought but I have a recipe for mixing it with seaweed and other things for an overall good fertiliser. Quick delivery, seamsless transaction, good price.

Amazing foliar spray!

By: Ken on 3 July 2020
First time using Fulvic from plant doctor, mixed 2ml to 1L into pressure spray, applied on lettuce and tomatoes leaves. Next day you can see noticeable greener leaves especially on the tomatoes. Definitely worth getting! The 1L will last me but I'm definitely going for the larger bottle in spring for my garden.

Ben Sims secret mix

By: Alec Burich on 11 April 2020
I have 220sm of lawn in three sections. Although regularly mowed there was still room for improvement. Checked online and seen lawn tips by Ben Sims. Couldn’t stop talking about liquid organics from plant doctor. His lawn was looking pretty smick and had gone through several renovations. The products he was using which I purchased through plant doctor, has drastically changed the appearance of my lawn. Sims secret mix from plant doctor, consisting of quantum H, Seaweed Secrets, Activate8mate, Liquid Iron and Stimulizer . These products bond the nutrients in the soil, green up the lawn and root plant growth, strength. Yep the lawn looks a million dollars since I’ve been using these products. I’d say I would be purchasing more of these products in the future.

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Australian Owned

Australian Owned

Australian family owned and operated. Online sales since 2009.

Flat Rate Shipping

Flat Rate Shipping

Flat-rate shipping from $9.95* Fast and affordable! *For items 1 kilo or less, shipped within Australia. $14.95 for above 1kg. Excludes some regional areas.

*For items 1 kilo or less shipped within Australia.

Same Day Dispatch

Same Day Dispatch

Same day dispatch Australia wide for orders received before midday*

*Monday - Friday (Excludes Public Holidays)

Customer Reviews

5

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.

Billy Green

5

Will definitely be getting more 8 weeks difference been using stimulizer, activ8mate, soil wetter, seaweed secrets and champion fertiliser. Was super fast delivery.

Michael Preddy

5

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!

Tim McAuliffe

Plant Doctor

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