Black Grit 18kg
Black Grit 18kg
Black Grit 18kg

Soil Health, Fertility and Sustainability

  • More Flowers
  • More Fruit
  • Stronger, Healthier Plant Growth
  • Calcium
  • Magnesium
  • Silicate
  • Phosphate

 

Black Grit is a fused calcium magnesium silicate phosphate soil amendment/fertilizer that has been used successfully around the world for the last century in low fertility acid soils where it increases pH and CEC (Cation Exchange Capacity) and provides and helps unlock P in the soil.

Black Grit provides soil amendment and fertilizer together in ONE application to acid soils. It assists in increasing pH to a sustainable level whilst providing useful amounts of macro-elements Ca, Mg, Si and P as well as a range of micronutrients. It is not water-soluble therefore does not leach or wash away.

Black Grit is made from naturally occurring minerals not chemically treated. It works with the natural soil chemistry to digest soil acid as well as providing minerals in a plant-available form. It is high in plant available calcium (24%), magnesium (10%) silicon (11%), and phosphorus (8%) and also acts as an alternative to lime.

Black Grit can be used as a starter in a crop or broadcast over pasture at any time of the year.
It has taken decades in some cases for soils to deteriorate, change also takes some time, but the sooner Black Grit is applied the sooner it can get to work in the soil. Typically, within 24 hours of application with some moisture Black Grit will start to digest soil acid and provide macronutrients to the plant.

Simply sprinkle 40g p/m2 around the garden and water in.
1kg of Black Grit will treat up to 20m2 garden.
Apply Black Grit every 3-6 months

Black Grit 18kg will be sent as a single item and is not included in any free shipping promotion. Any other items ordered with the Black Grit 18kg will be shipped separately. If your order totals above $200 & includes a Black Grit 18kg bucket, a shipping fee will apply to the whole order.
Our Click and Collect locations have different operating hours. Check our FAQ’s page for details on each location. Once your order is placed, we will send you an email confirming your order has been received. You will receive another email confirming when your order is ready for pickup. Please pick up your items within one week of receiving the confirmation email. If you need more time to collect your order, please contact your selected store to make arrangements. Make sure to check stock availability for your chosen location on each product page before you reach checkout. You cannot complete your order unless all items are available at your selected location. For more details, visit our stockist page and filter for the Click and Collect locations to find details about each location. You can also check out our FAQ page for additional information.

Black Grit 18kg

107 reviews

SKU: BG18

$69.00 $159.00

Customer Reviews

Based on 107 reviews
90%
(96)
8%
(9)
1%
(1)
0%
(0)
1%
(1)
100.0
95.5
S
Stephen Raward

Black Grit 18kg

P
Peter Grivas

Black Grit 18kg

D
Doug Williams
Black GRIT

Used on all raised garden beds with cocoa pith and compost, waiting to see results over the summer growing period and onwards

J
Jo West
Black Grit.

I'm new to Vasili's products, but in the few weeks I've been using black grit and quick release fertiliser my citrus trees have new growth and flowers after the roos striped them back to sticks. I thought I'd need to buy new trees but vasili's products are outstanding and have brought the trees back to life. Thank you.

J
Joy McNamara
First time user

We haven't used the product before, so I can't rate it as yet. I am hoping it will work a miracle on our lemon tree that is looking a bit sick, so fingers crossed! I had to put a rating to allow me to submit my comment so please ignore.

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Frequently asked questions

Is Black Grit Organic?

Yes, Black Grit is an organic, sustainable fertiliser that safely nourishes your plants without the risk of burning. Its controlled release formula ensures that your plants receive the right amount of nutrients over time.

How Often Should I Use Black Grit?

For optimal results, we recommend applying Black Grit every 3 to 6 months. This frequency ensures that your plants consistently
receive the nutrients they need for robust growth and health.

What Is Black Grit Made From?

Black Grit is naturally crafted from a blend of Rock Phosphate and Limestone, ingredients that have proven their worth globally for over a century. This mix not only increases soil pH and Cation Exchange Capacity (CEC) but also unlocks and makes phosphorus more available in the soil, enhancing plant growth in low fertility, acidic soils.

MORE BLACK GRIT FAQs

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