Perlite is a versatile and lightweight additive commonly used in potting mixes to improve soil structure and drainage for houseplants. Made from volcanic glass, perlite helps aerate the soil, preventing compaction and allowing roots to breathe more easily. To use perlite, simply mix it into your potting soil at a ratio of 1:1 or add it as a top dressing. Its porous nature also aids in retaining moisture while preventing waterlogging, promoting healthier root growth. With its numerous benefits, perlite is an essential component for any indoor gardener:
- Improves soil aeration
- Enhances drainage
- Prevents soil compaction
- Promotes healthy root development
While horticultural perlite does retain water and food for the growing plants, it is best used for drainage purposes. A good potting soil should contain at least 25 percent perlite for proper drainage.
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