Horticultural Perlite

Horticultural PerlitePerlite is one of nature’s most versatile and efficient minerals. Dicaperl’s Aero-Soil horticultural perlite is an easy-to-use, lightweight, sterile soil conditioner that is beneficial for commercial growers, landscapers, and home gardeners. Some of its most popular uses include:


Cuttings may be rapidly rooted in either 100% Aero-Soil horticultural perlite or a mix of 3/4 perlite and 1/4 peat moss. Rooted cuttings can be easily removed from the media without causing root damage which lessens transplant shock. The media should be kept moist, and transplanting should not be attempted until a sturdy, well-formed root system has been developed.

Stadium and Golf Course Turf

Aero-Soil horticultural perlite can make turf areas more resistant to compaction and improve drainage. Because of the superior water exchange properties of Aero-Soil, less frequent watering is required. In addition, turf areas that have been treated with horticultural perlite will recover more quickly after use.


Aero-Soil can be used to advantage in the planting of new lawns as well as in the upgrading of established lawns. For new lawns, a one-inch layer of Aero-Soil should be tilled into the top 4 inches of soil. The lawn may then be sodded or seeded following seed producers recommendations.

It also improves the texture of clay soils by increasing aeration and drainage and improves the water holding ability of sandy soils.

Hydroponic Growing

Extensive research has shown that superior crop yields result when horticultural perlite is used as a growing medium. In addition, since perlite exhibits a unique water exchangeability, over-watering and under-watering problems associated with such materials as rockwool are reduced or eliminated. This reduces plant stress, greenhouse labor, and irrigation costs. Typical crops grown hydroponically in horticultural perlite are lettuce, cucumbers, tomatoes, arugula, basil, and strawberries.

Shrubs and Trees

When planting shrubs and trees, dig a hole 10-12 inches wider and six inches deeper than the root system. Set the shrub or tree in position, and add 1/3 Aero-Soil, 2/3 soil mix tamped into and around the roots. As the hole is filled, the mix should be thoroughly watered.

Bulb and Tuber Storage

Aero-Soil is an ideal material to use when storing bulbs, corms, and tubers over the winter. The perlite prevents excessive drying, eliminates dampness, helps insulate bulbs or tubers against rapid temperature changes, and reduces damage from rodents and insects.

Are you still not convinced horticultural perlite should be included in your commercial mix? Or maybe you’re looking for a more sustainable soil media options? Whatever your reason, Dicaperl has the supporting content (see below) to aid in your decision making. Above anything else, Dicaperl maintains the highest quality standards and recently registered the soil substrate as an Organic Input Material (OIM) with the California Department of Food and Agriculture.

Three Mistakes To Avoid When Choosing a Horticultural Perlite Supplier

Once you decide perlite is the right choice for your soil growing media, you then need to choose the right supplier. Not all perlite is created equal, and neither are all suppliers.

Download the eBook to Get These Three Things Right:

  • The Right Choice
  • The Right Size
  • The Right Company

Perlite: The Mineral for Healthy Plants

Expanded perlite provides space for both air and water within a soil mix. Learn why this mineral has advantages that lend itself to plant performance.

Perlite Mineral Advantages:

  • A naturally occurring mineral aggregate
  • Will not compact, maintaining consistent aeration and drainage for plant roots
  • Will not decompose over time, depleting soil nitrogen
  • Sterile—free of weeds, diseases, and pests
  • Lightweight, and ready to use
  • Neutral pH—a reliable constant when mixing with organic materials

The Water-Holding Capacity of Perlite

The natural size and unique structure of expanded perlite makes an ideal framework to hold water. In this guide, you’ll learn how size – or gradation – affects capacity, moisture retention and release.

Supporting Documentation

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