FarmTek Horticultural Super Coarse Vermiculite - 4 Cubic Feet

Horticultural Super Coarse Vermiculite is a mineral-based soil amendment for greenhouse and nursery applications. This coarse grade is manufactured to maintain its structure under the weight of saturated potting media to prevent settling and density. It increases the Cation Exchange Capacity (CEC) of soil to improve the retention of water and fertilizers within the root zone. Suitable for commercial substrates, seed starting and soilless growing mixes, this 4-cubic-foot bag provides the volume needed for raised beds and container gardening.

• Super Coarse Professional Grade: Processed into large, durable granules to maintain pore space in potting mixes. Provides a balance of moisture retention and oxygen flow to prevent soil compaction in deep containers.
• Root Zone Aeration: Natural mica mineral expanded under high heat to create a lightweight, porous structure. Loosens heavy soils to facilitate root expansion in commercial crops and nursery stock.
• Nutrient and Water Retention: Functions as a mineral-based reservoir that holds water and essential nutrients like potassium and magnesium. Releases moisture slowly to the root system to reduce irrigation frequency.
• Sterile Propagation Medium: Naturally sterile and pH-neutral environment for seed germination and cutting propagation. Provides the consistent moisture levels required for high strike rates in greenhouse environments.
• Natural Mineral Composition: Inorganic silicate mineral that does not rot, mold or decay over time. Odorless and suitable for use in organic gardening, hydroponic systems and specialized growing media.