Garden Soil Amendments
Whether you are amending to improve and reuse old nutrient-deficient soil from previous years or optimizing a sub-optimized soil to get the most out of your upcoming growing season, we have a great list of helpful additives to get your soil quality where it needs to be for a productive and efficient growing season.
To amend soil means to improve it with additional materials. These soil amendments or soil conditioners improve the physical nature of soil. They reduce compaction, aerating the soil to allow water and nutrients to more easily move through it and reach plant roots. Some soil amendments also add nutrients to the soil, help retain moisture and help maintain the correct pH balance.
Improve Soil Structure (Moisture/Water Retention, Aeration)
Garden Compost

Compost is a rich source of organic matter and nutrients. It helps improve soil structure, water retention, and nutrient availability. Compost also introduces beneficial microorganisms.
View ProductPeat Moss

Peat moss is used to improve soil moisture retention and aeration. It is particularly helpful in sandy soils that drain too quickly.
View ProductCoco Coir

Coco coir is a sustainable alternative to peat moss. It helps with moisture retention, aeration, and nutrient uptake. It's often used as a growing medium.
View ProductPerlite

Perlite is a lightweight, porous material that improves soil aeration and drainage. It prevents soil compaction and allows for better root development.
View ProductAbove are just a few examples of garden soil amenedments we carry at Hydrobuilder.com. Check out all of our soil structure inputs to find the perfect amendments for your garden and soil.
Add Minerals For Various Benefits
Different soil types may require different minerals. Check out all of our minerals & elements to find the perfect addition to your specific tpye of soil.
Add Organic Meals Depending On Needs
Organic meals are usually derived from bone, blood, kelp, fish, or alfalfa. Meals are widely used in organic gardening and have produced great results for many years. There are lots of different types of organic meals, each having its own purpose.
Popular Build-A-Soil Soil Building Kits

This nutrient kit is proven and is simple and affordable
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If you intend on using sphagnum peat moss then this kit is perfect for you.
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This kit was perfectly designed to re-amend your soil after your first grow cycle and every time there after.
View ProductHelp Future Nutrient Uptake During Growing Season
These beneficial fungi form symbiotic relationships with plant roots, enhancing nutrient uptake and improving plant health. This fungus gives new or recently moved plants a head start on life, and can help buffer stresses from the environment.
We carry a wide range of mycorrhizae products at Hydrobuilder. These will help you improve your grow and get your plants off to a strong start. You can also check out our Root Stimulators. Many of these contain mycorrhizae along with tons of other good stuff to boost root growth!
Top Garden Soil Amendment Brands
Popular Garden Soil Amendment Blog Posts

When you need to add phosphorus to the soil in your garden, many organic gardeners turn to bone meal fertilizer for plants.
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If you’ve ever found yourself trying to determine the difference between perlite and vermiculite, you’ve come to the right place.
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As you finish up your grow, you are likely wondering how to amend your soil for the next growing season.
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