Stimulizer
This is top quality stuff! good price
Stimulizer | Fulvic Acid Biostimulant For Lawns and Gardens | Super concentrate natural chelating agent - 30ml dropper bottle
Boosts uptake of foliar feeds.
Super-concentrated fulvic-based biostimulant with minerals and natural plant stimulants. Enhances root growth, nutrient uptake, and microbial activity. Improves stress tolerance, reduces root disease risk, increases brix. Powerful chelator.
Fulvic + Humic Bio-Stimulant Complex
Maximises Nutrient Uptake & Growth Efficiency
Fixes Poor Fertiliser Response & Weak Growth
LawnsGardensFarms
$12.95
Description
Ultra-Concentrated Fulvic Acid Bio-Stimulant & Natural Chelator
Unlock healthier soil, stronger roots, and bigger plant yields—naturally.
Super concentrate Bio-stimulant & natural chelating agent - with natural stimulants, minerals, and nutrients. Super concentrate, premium Fulvic acid-based product. A powerful bio-stimulant containing more than 75 minerals, humic acid extracts, and natural plant stimulants. This unique formula, a ‘Trade Secret,’ was invented by Plant Doctor’s founder, Daniel Fitzhenry, with remarkable results. Stimulizer is widely used by hydroponics growers and professional growers across Australia and worldwide. It provides an immediately available form of food for plants and soil microbes, essential for healthy soil. Stimulizer effectively eliminates root rot diseases under certain conditions and stimulates root growth in a way that no other known product can. Compatible with both acidic and alkaline materials, Stimulizer is one of the most valuable inputs for creating a healthy, well-balanced soil environment for plants to thrive. Often referred to as the ‘missing link’ in plant nutrition.
Used by hydroponic experts, landscapers, and commercial growers across Australia, Stimulizer is the secret weapon behind fast-rooting cuttings, rapid recovery after stress, and yield bumps that speak for themselves. It blends effortlessly into any garden or crop program and makes everything you apply, fertilisers, sprays, tonics, work harder and smarter. Once you try it, you’ll wonder how you ever grew without it.
Nutrient Profile:
CEC
Chelation Capacity
1500+
FA
Fulvic Acid
High-grade
TM
Trace Minerals
75+ Occurring
HE
Humic Extracts
Ancient Organic
pH
Compatibility
Acid–Alkaline
Why choose Stimulizer:
- Fights root rot & disease naturally
- Accelerates root growth & nutrient absorption
- Unlocks “locked-up” nutrients in soil
- Boosts beneficial soil microbes & suppresses harmful ones
- Improves water retention & reduces wilting
- Enhances brix, yield, and resilience
- Compatible with fertilisers, sprays, and all pH levels
Tired of plants stalling in poor soil or not responding to fertiliser? Stimulizer flips the switch. It activates your soil’s natural potential, unlocking tied-up nutrients and feeding beneficial microbes—all within hours. Whether your plants are stressed, sluggish, or just need a kickstart, Stimulizer brings them back with a visible surge of energy and vitality. Whether you're growing tomatoes on a balcony, managing turf, or running a hydroponic setup, Stimulizer gives your plants the foundation they need to thrive. With faster root development, stronger resistance, and superior nutrient uptake—it’s the boost your soil and plants have been waiting for.
(STM)
Features
Benefits of using Stimulizer:
Natural Chelator
Fulvic acid binds to locked-up minerals, making them instantly plant-available (even within 4 hours)
Root & Shoot Growth
Stimulates root hair development and cell elongation, giving plants deeper access to nutrients
Photosynthesis Booster
Opens stomata to improve energy conversion, especially in cloudy or humid conditions
Disease Suppression
Reduces harmful microbes (e.g. Pythium) and boosts beneficial microbial populations
Plant Immune Activation
Increases resistance to pests, wilting, and environmental stress
Yield Enhancer
Improves flowering, brix levels, and fruit set through increased nutrient absorption
Soil Detoxifier
Helps break down chemical residues (herbicides, pesticides, heavy metals) and stabilises nitrogen (urea)
Specifications
| Key Bioactive Components: |
|
| Derived From: | Plant-based extracts, fermentation-derived bioactives, and natural organic compounds |
| Mode of Action: |
|
How it Works
The Science Behind Stimulizer:
Stimulizer works through a unique combination of chelation, microbial stimulation, and cell signalling that improves plant and soil function from day one. Stimulizer functions as a highly bioavailable fulvic acid complex with a cation exchange capacity (CEC) of 1500—making it one of the most effective natural chelators available. Its low molecular weight allows rapid translocation of micronutrients through plant cell membranes, often within 4–6 hours of application. By stimulating root exudation and microbial colonisation in the rhizosphere, Stimulizer enhances enzymatic activity, nutrient cycling, and overall soil biofunction. The formulation also supports stomatal conductance and chloroplast activity, boosting photosynthetic efficiency even under abiotic stress such as cloud cover, salinity, or heat.
Application
| Type | Rate | Frequency |
|---|---|---|
| Watering Can | 2ml (40 drops) per 9L watering can | Apply fortnightly or when required. Does not burn or damage the plant, lawn or soil if over-applied, but works best at lower rates. |
| Broadacre | 780ml per hectare | |
| Hydroponics | 360ml to 1000L of water | |
| Turf - Foliar | 290ml/Ha | |
| Vineyard - Foliar | 400ml/Ha | |
| General - Foliar | 3ml/100sqm | |
| Frequency |
Download Application Rates Document or please refer to the rear label for application rates.
Safety
Safety Guidelines
- Keep out of reach of children. May be harmful if swallowed.
- If ingested, seek medical help immediately.
- Always conduct a small trial before changing rates, products, or application methods.
- The seller is not liable for any injury resulting from the use or storage of this material.
- This is a mineral-based fertiliser, and analysis may vary slightly due to its natural ingredients.
FAQ
Can Stimulizer be used with products such as PGRs?
Yes, Stimulizer can be used with all liquid inputs including PGRs (Plant Growth Regulators), herbicides, and foliar sprays to improve uptake. We recommend conducting a small jar test first and applying to a test area before full-scale use.
What is the capacity of the Stimulizer dropper?
20 drops of Stimulizer is equivalent to 1ml.
What does Stimulizer do?
Stimulizer is a powerful bio-stimulant that improves nutrient uptake, boosts root development, enhances microbial activity, and improves soil moisture retention. It acts as a natural chelating agent and soil conditioner.
How often should I use Stimulizer?
Apply every 2–4 weeks, or more frequently during periods of stress or high growth. Stimulizer is effective year-round in Australian conditions.
What is the application rate for Stimulizer?
For lawns and gardens, apply 10–20ml per 100m² diluted in water. For hydroponics and foliar application, use at 1–2ml per litre of water. Always trial first before broad use.
Is Stimulizer safe for all lawn types?
Yes, Stimulizer is safe and effective for all common Australian turf varieties including buffalo, couch, kikuyu, and zoysia.
Can I use Stimulizer with fertilisers?
Yes, Stimulizer enhances the effectiveness of most fertilisers by improving nutrient uptake and reducing lockup. It’s particularly effective with liquid and granular fertilisers.
Is Stimulizer organic?
Stimulizer is not certified organic, but it contains natural humic substances, minerals, and plant stimulants derived from ancient deposits and natural sources.
Can I use Stimulizer in hydroponics?
Yes, Stimulizer is widely used in hydroponics to improve nutrient uptake and root health. It is compatible with acidic and alkaline nutrient solutions.
Is Stimulizer pet- and child-safe?
Yes, once the treated area has dried, it is safe for children and pets to return to the lawn or garden.
What are the key ingredients in Stimulizer?
Stimulizer contains over 75 minerals, natural humic and fulvic acid extracts, and plant-based bio-stimulants. It is formulated to stimulate root growth and support soil biology.
Reviews
customer reviews
Showing newest first
Worth it
Have used this for about 6 months and has definitely helped me make my soil healthier and create a green healthy lawn and garden. Not that expensive and gives results
the secret sauce to Vegy gardens and my turf
Simply amazing product. It really worked for me and so happy with the value.
Stimulizer
Very good product for helping your plants to keep the nasty insects away and feed your soil and you only need a very small amount very economical.
Stimulizer
A few dashes of this is must add to my sprayer when sprayer majority of my products for best result highly recommend to add this
Stimulizer
After a recent decision to get my lawn in better shape, stimulizer has really helped me achieve better soil and plant root health in some troubled areas. Paired with Seaweed Secrets and Quantum H this is an incredible combination of products!!
Amazing results
Started using this on my pot plants and got great results and now I am going to try in my lawn. Delivery was super quick as always.
Great service and fast shipping
This product is fantastic. I’ll be back for more!
Stimulizer
Was hesitant to purchase this product but given the low cost and the wealth of benefits it provides it’s a no brainer for the lawn if you’re an enthusiast! Thanks plant doctor
LUSH AND GREEN
Love this product, made my new lawn from light green to a bright vibrant green in only two applications! Highly recommend. Purchased as part of the Lawn Lovers Pro Pack.
Great product and team
I purchased the 1L product as it represented good value. I am using with seaweed secrets and Quantum H and are totally amazed by the results on my turf, indoor and outdoor plants. Will 100% order again and recommend to friends and family.
Awesome
This product is perfect for The Root system
Great product
I really like the idea of feeding the soil and the plant, using 2ml per watering can it will last a long time. The team is also really helpful and accommodating
This stuff works!
Overall great product that just compliments the Plant Doctor gardening regime
Top Quality
I've been using Plant Doctor liquid fertilizers for some time now, and I can't fault them. They are of a high quality, and make my lawn look exceptional. Stimulizer works well, and it lasts forever due to the small amount of product required.
Stimulizer
This stuff just gives my cuttings and seedlings that extra boost, Amazing!
Just a little bit of Stimulizer
I use this as apart of the Lawn Lovers Bundle. Be careful not to add too much, read the label and use a dropper!
Fantastic
Fantastic results from such a small package
A little is A Lot
Since using this product i have noticed the improved uptake of nutrients and a happier plant health.
Great product
Results speak for themselves
Little background supercharger
Awesome little addition 3mL to most things and helps them get absorbed is especially noticeable when using glyphosate or something only 1 application with stimulizer completely knocked over an established plant I needed to kill off.... I usually needed to do 2 applications to kill them but not with this stuff added just the 1.
Works great
Having recently purchased this the benefits on my lawn have been noticeable. Tiny amount of stimulizer mixed in with some other products has benefited my Kik no end.
Combo with Seaweed
I did an experiment, combining 10% of this to 90% seaweeds secret and it's now my magic potion for my succlents plants.
Colors and growth are topnotch.
Great Product
Excellent results on my Kik in SEQ, very quick postage and great communication, highly recommend
5 star praise
First time taking on a lawn reno and with help and guidance from the plant doctor my lawn is looking amazing.
This stuff is so easy to use with simple application instructions right there on the bottle you will get results in no time at the fraction of the price
Stimulizer liquid
This product really works, thanks for quality products Doctor
Great for helping foliar applications absorb even
Great for helping foliar applications absorb even faster. Worked a treat when I applied this with liquid iron
A must have to make your lawn stand out
Wish i purchased this Stimulizer earlier! Really helped my lawn absorb all the nurtients and noticed great results
Amazing Green Zoysia
I use the Plant Doctor Stimulizer on both my Empire and Augusta Zoysia in conjunction Natures Soil Wetter, Liquid Iron, Quantum, Seaweed Secrets and Activ8Mate and they bring a depth of healthy colour to my lawn that I have not seen with any other combination of products that I've tried
Fantastic
Was hesitant at first, however this product really does make a difference and I'd never do another application without it!!
Great Quality Bio-Stimulant!
My lawn struggles throughout the cooler months with root rot. This product is a great addition to the lawn fanatics out there! Lasts for ages to!
Goes in every foliar application
Doesn’t matter if I’m weeding or feeding, I chuck a bit of stimulizer in. Puts a rocket up whatever you’re applying.
Stiumulizer
Great product to use alongside other liquid ferts/soil amendments.
Speedy and quick delivery once ordered.
Awesome product!
Handy 1L bottle will last a while! Small app. rates and can mix with just about anything.
Amazing
This is one of my go to products to use for the lawn and around the garden when I want that extra boost.
Supercharge
Instant boost for plants soo stimulating!
Stimulize that lawn!
Wonderful product great for foliar applications teamed with iron see results very fast. Used with a pgr application and iron to beat a slight yellow off and worked flawlessly!
Great product
Really makes a difference in uptake when added to other plant doctor products
Great little product
I apply this with my Ben Sims mix through the fertigation system.
Pop
Recently used this product with my special mix application and the popped within hours! A must with any liquid application, game changer
Stimulizer
How can so little do so much?? No idea but it works
healthy plants
I used the recommended dose of stimulizer on my potted plants and quickly noticed a great improvement to the plants. They are 'stronger', have greener foliage and generally look like a happier and healthier plant. Great product.
Stimulizer
I brought this product to help with propagating my plants. It’s great, it’s accelerates root growth and helps prevent the stem rot you can offen get when taking cuttings.
great product!
I bought a bulk order of the ben sims pack which included this product and a variety of others. I Have been very satisfied this season with the results. Grass has handled the temperatures well with the assistance to plant doctors foliar products. The turf looks great and loves the applications. At a competitive price, i highly recommend. to assist liquid ferts (and pesticides/weed killers) soak into the leaf. you can see it work straight away when mixed into the sprayer.
Great little product
Great product so many goodies in this little package
Excellent Supplement product
Have tested out in my kelp mix without and with the product in the mix.
You can definitely see the improvement in lawn and vege plant in the garden bed straight away. So it is a must have product in your liquid fert arsenal weapon.
Keeping my lawn going through Autumn and into Wint
I've applied this with a kelp extract to my lawn and I think it's making the previously applied granular fert more available as well to keep the growth going and get the roots as strong as possible for winter. Still a deep green even though it's getting a lot of shade now and morning frost in Melbourne.
Top Shelf Gear
I don't know whats in this stuff but it packs a punch when mixed with other liquid applications! Excellent value as well as such a small amount is required.
Amazing!
I have no idea what's in it but it makes everything work so much better. Can see the difference in results when I haven't used to to when I have. Well worth it.
Great product
I bought a bulk order of the ben sims pack which included this product and a variety of others. I Have been very satisfied this season with the results. Grass has handled the temperatures well with the assistance to plant doctors foliar products. Stimulizer has also been used with my pest and weed control applications and has been a great addition to help boost. At a competitive price, i highly recommend.
Warranty
90 Day Money Back Guarantee
Shop with confidence knowing your purchase is backed by our 100% 90-day money back guarantee. If you're not completely satisfied, simply contact us within 90 days for a refund.
Shipping
Need help with application rates?
Not sure how much to apply for your lawn or garden? Use our Product Rates Calculator to get the right amount for your area.
Need a 12-month care plan?
Build a personalised lawn and garden calendar around this product and your growing conditions.
Customer reviews
customer reviews
Showing the 3 newest
Stimulizer
This is top quality stuff! good price
Worth it
Have used this for about 6 months and has definitely helped me make my soil healthier and create a green healthy lawn and garden. Not that expensive and gives results
the secret sauce to Vegy gardens and my turf
Simply amazing product. It really worked for me and so happy with the value.
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Customer lawns & gardens
Real results from Plant Doctor lawnies — see the stories behind the green.
Simon's Lawn Care Routine
A consistent liquid lawn care program focused on soil health, nutrition and vibrant colour.
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A detailed lawn care routine supporting an overseeded Kikuyu lawn at a 15 mm height of cut.
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Ian's Lawn Transformation: Reviving a Patchy Lawn with Better Soil Health and Targeted Lawn Care
A recovery-focused lawn care program using soil improvement, biostimulants and seasonal lawn nutrition.
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Customer Reviews
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
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
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!
