Super concentrate Bio-stimulant & natural chelating agent - with natural stimulants, minerals and nutrients
2ml (40 drops) per 9L watering can
3-5ml per 100sqm
Apply fortnightly or as required.
780ml per hectare
360ml to 1000L of water.
Super concentrate, premium Fulvic acid-based product. A powerful bio-stimulant with more than 75 minerals, humic acid extracts and natural plant stimulants.
This unique formula is a ‘Trade Secret’ and has been invented by Plant Doctors founder, Daniel Fitzhenry, with unbelievable results. Stimulizer has been used by Hydroponics’ Growers and professional growers across Australia and the world. It is an immediately available form of food, both to the plant, and the soil microbes needed for a healthy soil. Stimulizer eliminates root rot diseases under certain conditions and stimulates roots unlike any other known product. Stimulizer is compatible with a wider range of materials, whether they are acidic or alkaline. Arguably, Stimulizer is the most valuable input in creating a healthy well-balanced soil for plants to thrive in. It is also described as the ‘missing link’ in plant nutrition.
Pythium and other Root Rot diseases have been controlled.
Powerful chelating agent (CEC 1500)
Increase uptake of foliar applied fertilizers, insecticides, herbicides & fungicides.
Stimulizer-chelated materials have a rapid entry through the plant membranes (as little as 4hrs).
Increases root growth and healthy root development for increased access to soil nutrients.
Increases stomata opening, also increasing photosynthesis. Useful in cloudy weather.
Stimulate cell elongation and division.
Has a unique capacity to readily dissolve minerals & trace elements.
Detoxifies various pollutants in the soil (herbicides, pesticides, heavy metals, etc).
Stabilise urea when soil applied.
Increase the plants immune system.
To combat & protect plants from root diseases.
When wilting occurs in the plant.
Combine with Fertiliser/Insecticides/Herbicides/Fungicides to increase uptake.
When organic carbon levels are low.
When valuable soil nutrients are locked up and unavailable.
Keep out of reach of children. May be harmful if swallowed. If eaten seek medical help.
ALWAYS TRIAL BEFORE CHANGE. Before a new rate, product or application method is used, a small trial is recommended. Warranty of this material, either expressed or implied is limited to a guarantee of the composition as shown on this label in as much as uses are beyond the seller’s control. For the same reason, the seller is not liable for any injury to any living thing, crops, soils, or materials which may result from the use or storage of this material.
As this is largely a mineral based fertiliser made from natural resources, the analysis may change slightly.
Q: Can Stimulizer be used with products such as PGRs?
A: Stimulizer can be used with all liquid inputs, including PGRs and herbicides, etc for a quicker uptake. However, we do suggest completing a small jar test and apply the combination of products in a test area to determine whether there is an adverse effect.
Q: What is the capacity of the Stimulizer dropper?
A: 20 drops equal 1ml.
Amount of Reviews: 109
By: Gavin on 24 November 2023
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!
By: Steve on 23 November 2023
Overall great product that just compliments the Plant Doctor gardening regime
By: Justin on 25 October 2023
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.
By: Sharon on 13 October 2023
This stuff just gives my cuttings and seedlings that extra boost, Amazing!
Just a little bit of Stimulizer
By: Timothy on 8 September 2023
I use this as apart of the Lawn Lovers Bundle. Be careful not to add too much, read the label and use a dropper!
By: Bradley on 31 August 2023
Fantastic results from such a small package
A little is A Lot
By: David on 3 August 2023
Since using this product i have noticed the improved uptake of nutrients and a happier plant health.
By: Adam on 25 May 2023
Results speak for themselves
Little background supercharger
By: Philip on 24 May 2023
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.
By: Joshua on 17 April 2023
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
By: Mary on 14 April 2023
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.
By: Joel on 1 January 2023
Excellent results on my Kik in SEQ, very quick postage and great communication, highly recommend
5 star praise
By: dion on 27 September 2022
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
By: Jason on 22 July 2022
This product really works, thanks for quality products Doctor
Great for helping foliar applications absorb even
By: Vincent on 18 April 2022
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
By: Dean on 14 April 2022
Wish i purchased this Stimulizer earlier! Really helped my lawn absorb all the nurtients and noticed great results
Amazing Green Zoysia
By: David on 23 March 2022
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
By: Adam on 8 March 2022
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!
By: Jarod on 16 February 2022
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
By: Andrew on 11 February 2022
Doesn’t matter if I’m weeding or feeding, I chuck a bit of stimulizer in. Puts a rocket up whatever you’re applying.
By: Kyle on 11 February 2022
Great product to use alongside other liquid ferts/soil amendments.
Speedy and quick delivery once ordered.
By: Andrew on 11 January 2022
Handy 1L bottle will last a while! Small app. rates and can mix with just about anything.
By: Emmanuel on 30 December 2021
This is one of my go to products to use for the lawn and around the garden when I want that extra boost.
By: BRETT on 26 December 2021
Instant boost for plants soo stimulating!
Stimulize that lawn!
By: Aiden on 26 December 2021
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!
By: nicholas on 23 December 2021
Really makes a difference in uptake when added to other plant doctor products
Great little product
By: Rowan on 22 November 2021
I apply this with my Ben Sims mix through the fertigation system.
By: Alex on 15 October 2021
Recently used this product with my special mix application and the popped within hours! A must with any liquid application, game changer
By: Greg on 30 September 2021
How can so little do so much?? No idea but it works
By: Daryl on 24 September 2021
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.
By: Lisa on 7 September 2021
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.
By: Mason on 15 July 2021
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
By: Steve on 2 July 2021
Great product so many goodies in this little package
Excellent Supplement product
By: Anferny on 11 June 2021
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
By: Colin-John on 21 May 2021
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
By: Tim on 14 April 2021
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.
By: Chris on 3 March 2021
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.
By: Mason on 26 February 2021
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.
Stimulizer. What only 3ml ??
By: Anthony on 21 January 2021
When reading about this product I though what is 3ml/100sq going to do. Apparently a lot. There is so much great lawn nutrients in this to assist my lawn to fight of disease and as the name suggests stimulate root growth.
Small but mighty!
By: Mike on 9 January 2021
This product is small but packs a punch. Great value and highly effective!
By: Tyler on 4 January 2021
I purchased the Ben Sims Lawn Tips pack for my instant turf couch and all of the products have been sensational. The improvement in my couch at a former residence, in which I did not use these products, and the couch at our new place, in which I use these products, is 10 fold. Very happy.
Great products from PD
By: Karan on 4 January 2021
I have been using this in combination with other liquids from PD - Soil Wetter, Quantum H, Seaweed secrets, and liquid iron. They have worked great and my lawn and plants and healthy, lush and tolerant of all weather conditions. Highly recommend getting all these and spraying using a knapsack every 2-4 weeks.
Awesome product once again.
By: Nathan on 9 December 2020
Been using this now every week with all my other plant doctor products, and has made my lawn stand out so much! Thanks plant doctor!
The Unsung Hero
By: Scott on 15 November 2020
I've been using the Stimulizer with some of the other plant doctor products. It really helps the take up with my lawn.
The Perfect Buddy
By: Peter on 13 October 2020
Whether running Activ8 or Seaweed Secrets, a few mls as directed of this wonder liquid has helped achieve great results for my lawn
Just a little bit!!
By: Martin on 11 October 2020
Amazing how little product required to see results, a must for all applications
By: Daniel on 4 October 2020
such a good product. I use with all my foliar products and when treating any lawn diseases
By: wayne on 2 October 2020
Used in with conjunction of other products gives plants that boost, during the drought plants survived without any dramas. Highly recommended. Value for money a little goes along way. Super Fast delivery of all products
By: Adam on 23 September 2020
I use this on my lawns, garden beds and veg beds, great product at a fantastic price.
By: Mitch on 20 September 2020
Great product to use with all folar sprays, helps uptake of all the nutrients and lasts forever
Less is more
By: Vijayant on 19 September 2020
I use just a few drops of this product along with liquid fertiliser and seaweed secrets. Supposed to boost the uptake of products by the plant. Happy with the product and great service by Plant Doctor.
By: Brandon on 25 August 2020
Can definitely see results using stimulizer with active8
A new winter staple
By: Jerome on 27 July 2020
I used this just before winter to increase root growth on all of my plants and lawn to protect from frosts. Along with potash my winter garden has never looked so heatlhy! Far less die back, and foliage looks the best it ever has at this time of year. Tip - you only need a very small amount of this per application.
By: Michael on 22 July 2020
Ordered my product and had them delivered within 48 hours (for free!!) Very helpful team and support to finding the right solution for my needs. Great experience as well as value for money and can’t wait to see the results of the products. I did a lot of research and came to the conclusion that PD products are the way to go. Plus supporting a local business make it the purchase even better. Thanks guys!
By: Michael on 18 July 2020
Ordered this product early this week and had it delivered within 48 hours (for free!!) Very helpful team and support to finding the right solution for my needs. Great experience as well as value for money and can’t wait to see the results of the products. Thanks guys!
By: Ken on 7 July 2020
I added to my hydroponic system. Great results observed compared to the ones I have yet to added, 1 week into it and there were significant root growth vs the other tomatoes, and with the crazy Melbourne weather this week, the system with stimulizer had a quicker recovery from the frost a few days back. Definitely recommend any home growers out there to use this; price point they are competitive as well.
Stimulizer is an Amazing Product
By: Ben on 18 June 2020
Stimulizer is an amazing product. Outstanding results observed when used with Plant Doctor Liquid Iron which achieves visible plant uptake in a matter of hours and my soil health has never been better. Highly recommend this product.
By: Luke on 25 May 2020
Applied this with liquid fertiliser and my grass was super green, upright and glistening in the sun the very next day.
By: Brad on 8 May 2020
Have been adding Stimulizer to my knapsack among other products from Plant Doctor with great results!
By: Kristian on 26 April 2020
This is great to add to any fertilisers you use to add an extra boost! The only thing i have found using this product is that the mix ratio is very low, i wasn't seeing huge results, so i ended up doubling the ratio and i have notice and seen much better results at still a very low mix ratio. If you want to take your lawn and gardens to the next level, then i recommend adding this to your collection.
Value for Money
By: Steven on 29 February 2020
Its great how little you have to use, to get a fantastic results. Love it
By: Phil Gilmore on 9 January 2020
The multivitamin for your lawn. Nuff said.
By: Giang Le on 9 January 2020
Very small dosage required. Sometimes hard to measure but good product
Cannot go wrong with this!
By: Liam on 7 January 2020
Excellent value for money product to increase the health of your plants, the dose per sqm is so darn low that a bottle will last ages. This goes into every app I do, lawn and plants indoor and out.
Bang for buck
By: Samual Anderson on 5 January 2020
I have had the same 1l for near 2 years now, using every 2 weeks on foliar applications love the difference in uptake
By: Shane on 19 December 2019
Amazing how little of this is needed but seems to do a lot
Stimulizer - Super Concentrate Bio stimulant & sup
By: Dale on 4 November 2019
Seemed to make everything else perform better.
Works nice in the Ben Simms combo mix.
By: Jack Deen on 23 October 2019
Great value for money - a little goes a long way
By: Alexandra on 22 September 2019
A great value for money product. Will be adding it to all my mixes.
By: Aaron on 20 September 2019
Such a versatile product - able to use on hydroponics, lawns etc. Seeing definite improvements to both since I've started using. Also at the dosage rates required for good performance, it is great value for money!
By: Paul on 18 September 2019
A great value for money product. Will be adding it to all my mixes and looking forward to faster uptake of all liquids.
By: James on 13 September 2019
A great value for money product that helps all the products I mix take their full effect. Will definitely be order more of this stimulizer
great product for root disease
By: Aaron on 11 September 2019
Had some dead root disease and this managed to clear it all up post dethatchment, highly recomened
Goes a long way
By: Kris on 24 August 2019
Has worked brilliantly when applied with Ben’s special mix. Great value for money!
Simulate your lawn mix.
By: Rhys on 20 August 2019
Adding this to your lawn solution mix is amazing. The improvement in uptake rate is 10/10. Your lawn will love you and your neighbours envy you.
Great Value for Money
By: Tom on 19 August 2019
A great value for money product that helps all the products I mix take their full effect. Will definitely be order more of this stimulizer
By: Brett on 11 August 2019
Goes a very long way, you only need to add a very small amount in conjunction with your other products and get a significant improvement. Great product to add along with whatever mix you are using.
By: scott on 2 August 2019
added this to my mixture this week after reading the reviews and it gives a great little boost
great value for money
By: aaron on 25 June 2019
you only need to add a small amount when spraying liquids. noticed a much better uptake after using this. worth every penny.
By: phillip on 18 June 2019
Worth getting and adding to your mix to ensure you get that extra boost
By: Sean on 14 June 2019
a no brainer to add o the bundle packs !!! the take up achieved with the other products is superb, a must have !
A little goes a long way
By: Rebecca on 25 April 2019
Great value with only a small amount needed to make an impact. Well worth the purchase to use in conjunction with other plant doctor products.
Stimulizer for the lawn
By: Jason on 18 April 2019
I have never seen so many runners. This stuff later a long time you only need a little to get great results.
By: robert on 16 April 2019
A splash goes along way. Makes all the difference in my special mix. Very happy healthy LaPrima Couch
A Must Have
By: Stephen on 29 March 2019
If you’re serious about your garden, never forget to have Stimulizer in your arsenal.
Amazing at feeding your soil, it covers all the bases and gives you peace of mind that your plants can thrive in all climates
Supplement turbo charge
By: Matthew on 23 March 2019
Gives lots of other products a turbo boost during application. Delivery so quick it was almost handed through the computer monitor! Highly recommended.
By: Jennifer on 19 March 2019
This product has taken our lawn to the next level. Wouldn’t be without it.
By: Dominic on 11 March 2019
On my second bottle now last one last about a year amazed how little you see nice healthy results from you the bomb plant doctor keep it up deffinately recommend it
By: Michael on 10 March 2019
So i have been using stimulizer for almost two months now along with other PD products and i am amazed at the results will definitely be getting more.
Small Amount = Big Results
By: Scott on 5 March 2019
Adding just a tiny amount of Stimulizer when spraying Plant Doctor products is delivering fantastic results. My grass in healthier, stronger and lusher. My grevilleas have always struggled in too much shade and I'd almost given up trying to save them. Only a day after using Stimulizer, new growth was bursting out all over! The application rate is minuscule so a little of this concentrated elixir goes a very long way. I mix it with just about everything I spray in the garden and wouldn't be without it. Incredible stuff.
Great for healthy lawns
By: jason on 12 February 2019
Bought this with some other PD products as part of trying to reduce my retic use and keep my lawn healthy. Sprayed a couple of times already in my spray mix and can see the soil is retaining water longer and leaf colour and density doesn’t fade as much. Great to help hold onto water and nutrients, and for the normal residential lawn a bottle lasts a long time!
By: Paul on 8 February 2019
After adding a very small amount of stimulizer to each of my Plant doctor mixes, the results have been amazing! The Grass is so heathly, and the soil and root system has really become fertile and holds moisture even in our WA hot summers!. Using this product each time I apply seaweed Secrets, and active8 it has really taken my lawn to the next level! Would highly recommend using this in combination with other Plant Doctor Products with an overall turf care management plan. Thanks Plant Doctor!!!
By: Dane on 7 February 2019
Have used many different Fulvic products and this stuff is at the top of the list,very impressed with the results
Put it in everything! Supercharged
By: Martin on 10 January 2019
What a powerful product at such little application rates. I mix it in with all liquid applications, even with weed killers and it supercharges it!. Get on it
The little hero of the family.
By: Michael on 2 January 2019
What a bang for your buck this is. 3ml per 100sqm, I put this in with everything. Every time something in sprayed on my lawn stimulizer is in the mix. I has made a world of difference especially in conjunction with products like liquid iron, seaweed secrets and Acti8mate. Another staple with her spray.
By: nathan on 17 December 2018
i used this with a couple other products main one being activ8 mate. ifound the combination really made the grass dense up
Great for weed spraying also
By: Matt on 16 December 2018
As well as using this in the lawn with good results, I have applied it to my last few glyphospate sprays. It has helped speed up the weeds dying off with weeds starting to die in 36 hours.
By: Emma on 13 December 2018
use this with Natures Soil Wetter. Have achieved great results!
4 December 2018
Combined this with Activ8mate on the lawn and bang, 2 weeks later the lawn is stripping up beautifully. Really like how a little goes a long way. Really great stuff guys.
Has to be good!
By: Richard on 1 December 2018
I use this stuff added to my liquid mixes because Ben from Lawn Tips on Youtube says it is good and prevents and cures disease so if he says it is good then I will use it! 3ml per app is nothing so why not get some?
By: Kom on 17 November 2018
I am impressed with the results my lawn is best on the block in just a few months of use. Garden is thriving and it’s so concentrated it will last a very long time.
By: dimitrios on 8 November 2018
This product is superb my lawn is loving me using this with seaweed secrets and activ8mate
Great for the veggie garden
By: Trent on 5 November 2018
We’ve been using Stimulizer for close to a year now. We use it on all our garden from lawn, plants (including natives) and veggie & fruit.
The citrus & veggies have just taken off so well after using for around 6 months. When pulling out our veggies the root system has boomed and it’s helped reduce moulds during winter. Love this stuff!
By: Mathew on 4 November 2018
I add when spraying my liquid fertilizers. Have had great results so far.
By: Stephen on 21 October 2018
Easy to use. Recently did a soil profile and noticed some outstoubding root development on my 5 month old turf. I’m certain stimuliser has been the main contributing factor.
Love Plant Doctor products!!
By: Corbin on 20 October 2018
I add this to all my liquid fertilizers and any spray amendments. Good product which helps increase uptake especially in my iron sprays
By: Shaun on 19 October 2018
I have seen some great results relating to root growth. An increase in root mass has also been observed.
Utilizing for other issuss
By: Michael on 17 October 2018
I had a issue with pythium, tried everything a fellow lawn fanatic suggested this and solved the issue in 2 bbn applications!!
By: Ashley on 11 October 2018
Excellent product ! Added it to Activ8mate liquid fertiliser and the results have been outstanding. Also paired it with some recent herbicide treatment and results were great.
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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.
Amazing products!! The results are excellent and the prices are even better! Postage was only 2 days as well. Highly recommended!
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!