Rock Dust Mineral Fertiliser & Soil Improver 5kg | Richgro

Rock Dust Mineral Fertiliser & Soil Improver by Richgro is a natural, slow-release, sustainable fertiliser which contains microbial activity essential to soil and plant health and vitality. It releases trace elements to create vigorous, healthy plants that are better guarded against plant diseases. It contains Australian volcanic minerals and rock phosphorus to achieve natural, organic growth.

What are Rock Minerals? Rock Minerals (also known as Rock Dust) are a natural, mineral fertiliser made from specific rock types that contain trace elements essential to healthy plant growth. It is also an ideal soil improver, as it contains beneficial microbes that capture nutrients and improve overall soil health.

Why use a Rock Mineral Fertiliser? Rock Minerals are, by definition, non-leaching due to their very low water solubility; however, they are highly plant-available due to their high citrate solubility and microbial transportation of nutrients. Rock Minerals are pH-neutral and contain clay, humus, and microbes, thereby greatly improving the overall structure, quality, and fertility of soils. Rock Mineral fertilisers are balanced to work in a wide range of soils and climates. Plants grown with Rock Minerals are tougher (containing more nutrients), tastier, resist insect and fungal pressure and grow thicker, greener and flower/fruit harder!
Trace elements found in rock minerals are also important for our health, so adding them to the plants you eat means that you get some as well.

• Australian VOLCANIC MINERALS – Enhanced Soil Fertility
• Added Microbes Bio-Stimulant – for plant and soil health
• Slow release – 3 months feed
• Non leaching

Analysis: 11N:2P:9K

ROSES & ORNAMENTALS: Sprinkle 125g per square metre of garden bed every 8-12 weeks as required.

FRUIT TREES: 250g per year, age of tree up to 4kg.

1st year – split into several smaller applications.

2nd year – split into early and mid-season applications.

VEGETABLES: Sprinkle 125-175g per square metre of garden bed every 6-8 weeks as required.

NATIVES: 50g per square metre September, November, January, March or as required.

ANALYSIS:              %w/w
Nitrogen (N)
    N as Urea                 4.32%
    N as Ammonium      6.20%
    N as Rock Mineral     0.03%
    Total Nitrogen (N)    10.55%
Phosphorus (P)
    P as water soluble      0.17%
    P as citrate soluble     1.46%
    P as citrate insoluble   0.37%
    Total Phosphorus (P)    2.00%

Potash (K) as Sulphate  8.59%

Sulphur (S) as Sulphate 11.95%

Calcium (Ca) as Sulphate  4.95%

Magnesium (Mg)
   Mg as Sulphate  0.98%
   Mg as Rock Mineral  0.11%
   Total Magnesium (Mg) 1.09%

Iron(Fe) as Rock Mineral 0.82%

Carbon (C) as Coal  2.09%

Silicon (Si) as Rock Mineral  6.22%

N:P Ratio 5.3:1

WARNING: Wear gloves when applying. Do not swallow. The dust from this product may act as an irritant. Avoid inhalation and contact with the eyes and skin. Wash your hands immediately after use. Not for pet/human consumption.
This fertiliser may stain paths and masonry. Wash immediately from concrete paths and masonry surfaces, or staining may occur.