Vermiculite 100 Litre Course Grade)
Vermiculite is a exfoliated mica, it is light and has a very high capacity for water retention. Because of its flaky structure, vermiculite eventually breaks down into a paste and requires replacement every 2 - 4 years if used on its own.
A mixing ratio of 3 parts perlite to 1 part vermiculite is recommended as an ideal growing medium for use in seed propagation or in static or capillary systems.
It is advisable not to mix sand, scoria or crushed granite with perlite or vermiculite as they will separate when wet due to differences in densities.
10510 VERMICULITE PREMIUM GRADE 4 - 100 Litre BIN 35.00