Black Grit is a fused calcium magnesium silicate phosphate soil amendment/fertiliser 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 fertiliser together in ONE application to acid soils. It assists in increasing ph to a sustainable level whilst providing useful amounts of macroelements 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 is an organic controlled release, sustainable fertiliser that will not burn your plants.
Every 3 – 6 months
Black Grit 0-8-0 is a blend of Rock Phosphate and Limestone 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 is a fantastic controlled release, organic fertiliser for fruit trees. It will create stronger growth, better flowering and bigger and juicer fruit. Black Grit provides long lasting plant nutrient availability with low run-off or leaching.
Don’t take our word. See what our experts says about our services. We have got many positive reviews.
Black Grit has turned my garden into a flourishing oasis. I have never seen my plants looking so healthy and flowing so prolifically. Gardening Direct Australia are a family run business that genuinely care about there customers and I would not hesitate recommending them to everyone I know!
My 10 Gardenias were turning yellow and they were always struggling to flower, but after using Black Grit they have beautiful green glossy leaves and they are flowing like never before. I saw a difference within 1 week! Thank you so very much to the team and Gardening Direct Australia for there fantastic gardening range and for stocking this brilliant product.
I chose to buy some Black Grit after receiving a gift voucher from Gardening Direct Australia, and I am blown away by the results from my spring/summer veggie garden. I have always put so much into my soil and nothing has really given me the results i was looking for, that was until I tried Black Grit. This was definitely the secret missing ingredient that I was missing! I have never had so many tomatoes, zucchini’s and cucumbers! I have enough fresh produce to share with all of my family and friends and the flavour is amazing!
Black Grit has given me the best crop of tomato’s I have ever had! They are so healthy and deliciously tasty!
BEFORE BLACK GRIT
BLOOMS WERE STRUGGLING TO OPEN AND WERE SHOWING VERY LITTLE SIGNS OF ANY DOUBLE BLOOMS.
AFTER BLACK GRIT
NEW BLOOMS BEGAN TO EMERGE WITH A 100% INCREASE IN THE FLUSH OF DOUBLE FLOWERS.
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