Sil-Ponix is our brand of horticultural perlite commonly referred to as Krum. It is used as a nutrient carrier solution in a water-solvent-based growing medium. Ease of water and nutrient management, even moisture status around the roots, excellent air-water balancing, and consistently high yields have time and again established horticultural perlite as a key ingredient in any top performing growing medium.
Horticultural perlite has been successfully used in everything from potted plants to stadium turf. It is widely accepted as the superior choice in meeting the needs of commercial growers and home gardeners. Coarser particles absorb less water and promote better airflow. Finer particles absorb more water than coarser particles. At Silbrico, we develop Sil-Ponix in three different sizes so that the amount of moisture retained can be tailored for the particular use Sil-Ponix products and their main uses:
Learn more about these in the Grades section below.
The surface of each granule is covered with tiny cavities. This physical structure makes Sil-Ponix an ideal growing medium, providing optimum air-water relationships for efficient plant growth. It is a naturally occurring mineral that is lightweight, easy to handle, and also permanent since it doesn’t decay or dissolve. Sil-Ponix is sterile, free of weeds and disease, and has a neutral pH of 6.5 to 7.5–the ideal zone for most plants to absorb nutrients.
Medium: Seedling Growth
Works perfectly for seed cultivation and propagation because it clings to roots, reduces transplant shock, and increases survival rates.
Coarse: Soil mix/Hydroponics
Promotes drainage and aeration in heavy soils and provides optimum moisture retention for successful plant growth in all types of soil.
Super Coarse: Hydroponics / Specialized Applications
Provides constant moisture status around the roots, irrespective of weather or stage of root growth. Also ensures more even watering and resists overwatering.
All analyses are shown in elemental form even though the actual forms present are mixed glassy silicates. Free Silica may be present in small amounts, characteristic of the particular ore body.
*By Food Chemicals Codex Method
|pH of Medium||Neutral||Slightly Acid||Acid||Slightly Alkali|
|Fertilizer Control||Very Good||Good||Good||Good|
|Management||Very Easy||Fairly Easy||Fairly Easy||Fairly Easy|
|Weeding||Very Easy||Fairly Easy||Fairly Easy||Fairly Easy|
|Ease of Potting||Very Good||Good||Good||Good|
|Repotting||2+ Years||1-2 Years||1-2 Years||1-2 Years|