Soft Rock Phosphate 1kg

$15.00 inc. GST

Soft Rock Phosphate is unprocessed with exceptional trace element levels and is high in silicon. It includes 8-9% phosphorus, 19.3% calcium and a rich lode of trace elements. Known for not having problems with heavy metal cadmium. Soft Rock Phosphate is a great option to re-mineralise your soil.



Soft Rock Phosphate is a beneficial source of carbon for improved plant energy and beneficial bacterial and microbial populations. Soft Rock Phosphate is beneficial for acid soils because of its high calcium content that aids in neutralizing acidic soils. Phosphate rock has approximately one fifth the neutralizing power of lime.

The use of rock phosphate for gardens is a common practice for both flowers as well as vegetables. Flowers love an application of rock phosphate early in the season and will reward you with big, vibrant blooms. Roses really like rock dust and develop a stronger root system and more buds when it is used.

Compost Tea Recipe for Flowering and Fruiting

All measurements are per gallon (4.5L) – half a watering can, so multiply by the volume you will be doing to get the amounts needed.

Flowering and Fruiting Tea Recipe

Brew for no less than 24hrs up to 72hrs max – Use within 4 hours of finishing the brew.

  • ¼ cup worm castings or great compost – Our castings are wonderful for this!
  • 1-2 teaspoons Kelp meal
  • ¼ teaspoon soft rock phosphate

What’s Up with the Foam?

The presence of foam on the surface of tea is considered a positive sign, but it just means there are free proteins, amino acids or carbohydrates present. This can occur as the result of adding fish hydrolysate, certain organic acids or carbohydrates. If you don’t get foam that isn’t an indication that the tea hasn’t done what it is supposed to do.