Perlite for Gardening 4-6mm / 5L

Perlite is a popular and widely used horticultural material in gardening and plant cultivation. It is a lightweight, sterile, and porous volcanic mineral that is formed from the rapid heating and expansion of natural glassy rock called obsidian. Here’s some information about perlite and its applications in gardening:


  1. Soil Amendment: Perlite is commonly used as a soil amendment to improve the physical properties of the soil. It has excellent drainage properties, allowing excess water to pass through while retaining enough moisture for plant roots to access. Perlite also helps loosen heavy or compacted soils, improving aeration and root development.
  2. Seed Starting and Propagation: Perlite is an ideal medium for starting seeds and rooting cuttings. Its lightweight and airy nature create a suitable environment for seed germination and root growth. Perlite provides good water retention, preventing over-watering and reducing the risk of damping-off diseases.
  3. Potting Mix Component: Perlite is frequently added to potting mixes to improve drainage and prevent compaction. It lightens the overall weight of the potting mix, making it easier to handle and transport. The porous structure of perlite promotes a well-aerated root zone, preventing waterlogged conditions.
  4. Hydroponics and Soilless Mixes: In hydroponics and soilless gardening systems, perlite is commonly used as a growing medium. It provides an inert and sterile substrate for plants, ensuring adequate root oxygenation and nutrient absorption. Perlite’s lightweight nature also allows for easy manipulation and drainage in hydroponic setups.
  5. Soil Conditioning and Amendment: When amending garden soil, perlite can improve soil structure, water retention, and drainage. It helps break up heavy clay soils, preventing compaction and improving root penetration. Additionally, perlite can be used in composting to improve aeration and prevent excessive moisture retention.
  6. Insulation and Temperature Regulation: Perlite’s unique cellular structure provides excellent insulation properties. It helps regulate soil temperature by reducing heat absorption during hot weather and minimizing heat loss during colder periods. This can be particularly useful for protecting plant roots from extreme temperature fluctuations.
  7. Non-Toxic and Sustainable: Perlite is a safe and non-toxic material, making it suitable for organic gardening. It is also a naturally occurring mineral, making it an environmentally friendly choice. Additionally, perlite is a long-lasting material that does not decompose, providing consistent benefits to plants over time.

When using perlite, it is important to note that it is a sterile medium, meaning it contains no nutrients. Therefore, it is often mixed with other organic matter, such as compost or peat moss, to create a well-balanced growing medium that provides both drainage and nutrient availability.

Overall, perlite is a versatile and beneficial material in gardening, offering improved soil conditions, better drainage, and enhanced root growth. Its lightweight and porous nature make it a valuable addition to various gardening applications, from seed starting to container gardening and beyond.

$7.50 $8.18 (Including GST)

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