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Horticultural
Perlite & Vermiculite
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Hoffman
Horticultural Perlite
Perlite is a unique volcanic mineral which expands from four to twenty times its original volume when it is quickly heated to a temperature of approximately 1600-1700 degrees F. This expansion is due to the presence of two to six percent combined water in the crude perlite rock which causes the perlite to pop in a manner similar to that of popcorn.
When expanded, each granular, snow-white particle of perlite is sterile with a neutral pH and contains many tiny, closed cells or bubbles. The surface of each particle is covered with tiny cavities which provide an extremely large surface area. These surfaces hold moisture and nutrients and make them available to plant roots.
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In addition, because of the physical shape of each particle, air passages are formed which provide optimum aeration and drainage. Because perlite is sterile, it is free of disease, seeds, and insects.
Perlite has been used for many years throughout the world for soil conditioning and as a component of growing mixes with materials such as peat moss or bark. Extensive studies have shown that the unique capillary action of perlite makes it a superior growing media for hydroponic cultures.
Among the many uses of perlite today are propagation and seed cultivation, plug production and transplants, interiorscape and planter growing, composting, hydroponic cultures, turf and lawns, and around shrubs, trees, and landscaping.
Hoffman Horticultural Perlite is available in 18 Dry Quart (19.82 liters, 4.5 Dry Gallons) and 2 cubic foot (56 liters, 12.713 Dry Gallons) bags. For more information about the origins of perlite and its current uses, please visit The Perlite Institute at http://www.perlite.org. |
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Order #H2816504
Hoffman
Horticultural Perlite
18 Dry Quarts
10.95 |
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Order #HOF16545
Hoffman
Horticultural Perlite
2 Cubic Feet
24.95 |
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PVP Perl-Lome
Horticultural Perlite
Perl-Lome Horticultural Perlite is a semi-coarse soil additive that improves soil structure, eliminates soil crusting and compaction and improves drainage and aeration. Among the unique properties of Horticultural Perlite is its ability to work for many years in the soil. It does this because it is inorganic and does not deteriorate. In addition, perlite is chemically inert and has an essentially neutral pH.
Because it is sterile, perlite is free of disease, weed seeds and insects. Its light weight makes perlite easy to handle and is clean and odorless too. |
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As a soil additive mix equal parts perlite and soil. Moisten and mix thoroughly. Firm the mix well around the roots but do not pack too tightly. Water thoroughly.
For starting seeds or cuttings, mix equal parts of perlite and soil. Moisten thoroughly and add your seeds or cuttings. Pack gently. Approximately four weeks later transplant to growing container. Eight (8) dry quart (8.8L) bag. |
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Order #PER8QTSUN
PVP Perl-Lome
Horticultural Perlite
8 Dry Quarts
4.95 |
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Mother Earth
Large & Coarse #4
Horticultural Perlite
Mother Earth Perlite begins as naturally occurring siliceous rock. After it is heated to 1,600 degrees Fahrenheit, the rock expands up to 20 times its original volume. This kilning process is similar to popping popcorn and produces a growing medium that is sterile and has a neutral pH of 7.0.
The exceptional physical properties of this giant perlite make it tops in the perlite world for adding porosity to soil, soilless mixes, as well as hydroponic applications.
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Garden Tip: In containers, spread Mother Earth Large & Coarse Perlite in a one-inch layer along the bottom of the pot, then mix one part Mother Earth Large & Coarse with four parts potting soil. Water thoroughly and allow soil mixture to settle before planting.
In hydroponic systems, fill pot with Mother Earth Large & Coarse Perlite, and position plant properly so its root system is supported in the medium.
Mother Earth Large & Coarse Perlite #4 measures between 1/2 and 1 inch in diameter and is available in a 4 cubic foot bag.
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Order #713315
Mother Earth
Large & Coarse
Horticultural Perlite
4.0 Cubic Feet
36.95 |
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Hoffman
Horticultural
Vermiculite
Horticultural Vermiculite has the excellent property of improving soil aeration while retaining the moisture and nutrients necessary to feed roots, cuttings, and seeds for faster growth. Vermiculite is permanent, clean, odorless, nontoxic and sterile. It will not deteriorate, turn moldy or rot.
The pH of vermiculite is essentially neutral (7.0-9.5) but owing to the presence of associated carbonate compounds, reactions are normally in the alkaline direction.
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Vermiculite possesses cation exchange properties, thus it can hold and make available to the growing plant ammonium, potassium, calcium and magnesium.
When mixed with peat, composted bark, organic compost, or natural soils, vermiculite like perlite helps promote faster root growth, and gives quick anchorage to young roots. These mixes help retain air, plant food, and moisture, and releases them as needed by the plant. Because vermiculite is very light and easy to handle, it easily mixes with soil, peat, composted pine bark and other composted organic materials and fertilizers.
Hoffman Horticultural Vermiculite is a medium grade vermiculite with a varying average diameter of 1/8 to 3/16 inch. Available in 18 Dry Quart (19.82 liters, 4.5 Dry Gallons) and 2 cubic foot (56 liters, 12.713 Dry Gallons) bags. For more information about the origins of vermiculite and its current uses, please visit http://www.vermiculite.com. |
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Order #HOF16004
Hoffman
Horticultural Vermiculite
18 Dry Quarts
13.95 |
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Order #H2816045X
Hoffman
Horticultural Vermiculite
2 Cubic Feet
24.95 |
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Mica-Grow
Fine Grade
Horticultural Vermiculite
Mica-Grow Fine Horticultural Vermiculite is a naturally occuring mineral mica that has been treated by heat. Years ago, greenhouse growers discovered its value in potting media. Vermiculite speeds up seed germination, reduces disease and minimizes root damage during transplanting.
This fine vermiculite is suitable for use rooting cuttings, starting seeds, winter storage of bulbs and as a potting soil ingredient. Eight (8) dry quart (8.8L) resealable bag. |
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Order #VER8QTSUN
Mica-Grow
Fine Grade
Horticultural Vermiculite
8 Dry Quarts
5.95 |
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