Product description
Perlite is used wholly or partly in place of sand or grit in potting compost as it improves aeration, draining and insulation, also facilitates re-wetting. Perlite can be used to open up ready-mixed loam or peat-based composts.
For soil-less composts, mix 3 or 4 parts of peat moss with 1 part of perlite (80/20).
For loam based compost, mix equal parts of sterilized loam, peat and perlite (1:1:1) plus limestone and nutrients.
Alternatively, a 1:2:1 mix may be used. Mix thoroughly, then water well after planting, and feed continuously.
Perlite speeds up rooting, reducing the risk of damping off, provides an optimum balance of air and water, and makes water logging almost impossible, It also minimised damage to roots and check to growth during transplanting. Recommended for use in seed starting, as a rooting medium, soil amendment and golf green amendment. Wet before using to prevent airborne dust.