Perlite in Potting Mix

SERIES 32 | Episode 02

Jerry shares tips and benefits on using perlite to enhance potting mix.

Perlite is a mined volcanic glass that has been treated with hot steam, resulting in small, lightweight, and airy pebbles.

Jerry uses a mix of half fine-grade perlite and half seed raising mix for growing seeds such as citrus, as the perlite ensures water can penetrate through the soil but will not stay saturated. Perlite is also beneficial for a range of young and established plants, especially succulents and those that need a well-draining mix – simply use a mix of half perlite and half general potting mix.

When it comes to potting a large plant like a pereskia, Jerry combines one third large-grade perlite with one third horticultural sand and one third premium grade potting mix.

Perlite can be dusty, so it is recommended to water it before use which will settle the dust so you don’t inhale the dust and it will be easier to handle.

Perlite is particularly useful as it doesn’t break down over time. Regular bark based potting mixes do break down over time, reducing the flow of air and water through the mix, so adding perlite will keep your soil and plants healthier for longer!