Perlite is a naturally occurring volcanic mineral that expands into lightweight, porous granules when heated. Self-packed for convenience, it’s an essential soil improver that boosts aeration and drainage while preventing compaction. In Cape Town’s Mediterranean climate, perlite helps roots breathe freely and keeps potting mixes light, making it ideal for seedlings, succulents, and container plants.
Perlite can hold three to four times its weight in water while still keeping soil airy, making it a secret weapon for balancing moisture and oxygen in root zones.