Vermiculite - Coarse 4CF Greenhouse The active ingredient is Imazapyr

The active ingredient is Imazapyr 28

Designed to keep pesky squirrels at bay

is compatible with most insecticides and fungicides

Retains flexibility at freezing temperatures

or oxygen sensors

Vermiculite - Coarse 4CF Greenhouse The active ingredient is ImazapyrOMRI Listed for Organic Use. Horticultural grade Vermiculite has become a mainstay as a component of soilless growing mediums, as a soil amendment, and in many other horticultural uses. 4 cubic foot bag. Vermiculite has the excellent property of improving soil aeration while retaining the moisture and nutrients plants need. 6 9 pH in water. The particle size and absence of fines make this product ideal for soil mixtures. Brown bag