Horticultural vermiculite is permanent, clean, odorless, non-toxic and sterile. It will not deteriorate, turn moldy or rot. The pH is essentially neutral (7.0) but owing to the presence of associated carbonate compounds, the reaction is normally alkaline. The pH, colour and hemical composition of vermiculite will vary depending on the source from deposits around the world.
Vermiculite possesses cation exchange properties, thus it can hold available to the growing plant ammonium, potassium, calcium and magnesium.
Vermiculite, when combined with peat or composted pine bark compost, promotes faster root growth and gives quick anchorage to young roots. The mixture helps retain air, plant food and moisture, releasing them as the plant requires them.
Vermiculite is very light in weight, easy to handle and easily mixes with soil, peat, composted pine bark, fertilizers, pesticides and herbicides. Its use as a carrier and bulking agent ensures more even distribution in mixing operations.
SOIL AMENDING OR SOIL CONDITIONING : -
Where the native soil is heavy or sticky, gentle mixing of vermiculite up to one-half the volume of the soil is recommended. This creates air channels and allows the soil mix to breathe. Mixing vermiculite in flower and vegetable gardens or in potted plants will provide the necessary air to maintain vigorous plant growth. Where soils are sandy, mixing of vermiculite into the soil will allow the soil to hold water and air needed for growth.
Certificate Of Analysis:
4 to 7 mm
100 to 150 Kg / cubic meter
Max 2% + 1%
7 to 8