GROW!T Perlite Grade #4, 4 cu ft Bag Breakdown The low molecular weight of

The low molecular weight of UJB makes it very available to the plant for immediate use

which are applied directly to the soil and incorporated to a depth of 6 inches as a food source for beneficial microbes and crop plants

and langbeinite

For use on vegetables

you must purchase 128 units or more

GROW!T Perlite Grade #4, 4 cu ft Bag Breakdown The low molecular weight ofGROW! T Perlite Grade #4, 4 cu ft Product Details GROW! T Perlite is a versatile and inert soil amendment and soilless medium. Use it to aerate soil in container gardening, for germination and propagation of seedlings, for propagation of cuttings, and as a hydroponic medium. Hydrofarm searched globally and went to great lengths to find a source of top quality perlite, and succeeded and what we found is offered in the GROW! T line of perlite products.