Soil Amendments

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Soil Amendments Overview

Soil Amendments
Soil amendments help improve physical and chemical soil properties by providing the correct ratios of air, soil and water necessary to help turf thrive. They add nutrients to the soil, help retain moisture and help maintain the correct pH balance. They may also help reduce compaction and aerate the soil to allow water and nutrients to move through it more easily. GRIGG soil amendments provide supplemental nutrition and components that improve soil structure, including:

Zeolite, a naturally occurring microporous mix of silica and alumina that can be added to soil and growing media to enhance cation exchange capacity (CEC). Zeolite may be blended into a root-zone mix prior to planting to enhance establishment or injected into the root-zone. It also can be used in greenhouse nursery mixes, planting beds and containers, for landscaping, transplants, and horticultural crops. Can be used for turfgrass on all soil types, but best to use on sandy or loam (modified sand) soils.

Dolomite, an anhydrous carbonate mineral composed of calcium magnesium carbonate that helps raise the pH level of acidic soils. When soil pH is too low, soil nutrients may become bio-unavailable to plants.

Soil Types
There are three primary types of soil, which are determined by the amount of clay, silt or sand particles present.

Clay soil contains a high percentage of clay and silt. The small particles cling together to hold water and nutrients
well. However, clay soil is susceptible to compaction. This can make it difficult for water and nutrients to reach plant roots and limit their growth and development.

Sandy soil is composed of larger, coarser particles. It drains quickly, but it does not hold moisture and
nutrients effectively.

Loam soil has a nice balance of clay, silt, sand and organic material. It's the ideal soil type and provides adequate drainage and retention of moisture and nutrients.