Living Soil Made Simple

Living Soil means biologically active soil. It is a growing medium in which roots, microorganisms and other soil organisms interact. Organic matter provides food for soil life. As it breaks down, nutrients are released that plants can absorb.

You do not need to understand every microbiological process to get started. It is more useful to distinguish the roles of the growing medium, soil life and nutrient supply. This beginner guide explains the system. Links take you to our detailed tutorials on recipes and individual care topics.

How does Living Soil work?

Plant residues and other organic materials are continually transformed in the soil. Bacteria, fungi and soil animals contribute to these processes. Roots absorb available nutrients and also release substances into their surroundings. This creates an exchange between the plant and soil life.

This does not mean that microorganisms create missing nutrients. The system needs suitable starting materials and living conditions. Water, air and soil structure are therefore just as relevant as fertilizer.

What is Living Soil made of?

Organic matter

Compost, worm castings and plant residues can supply organic matter and nutrients. Their quality and composition vary. Adding more ingredients does not automatically make a better mix.

A suitable growing-medium structure

The medium retains water while also providing air-filled pores. The right mix depends partly on the container and its use. Adding microorganisms alone will not turn compacted or permanently wet soil into a suitable habitat.

Soil organisms and roots

Soil life is the active part of the system. It needs organic material, moisture and oxygen. Our guide to soil biology explains these relationships in more detail.

How is Living Soil different from pre-fertilized soil?

“Pre-fertilized” primarily describes a nutrient reserve. It does not tell you how biologically active a medium is or how it will be managed over time. Ordinary potting soil can contain soil organisms too. Equally, a “Living Soil” label does not guarantee a system that will keep working indefinitely.

The main difference is the approach: Living Soil is cared for as a habitat and nutrient cycle. Nutrient replenishment, structure and reuse are part of the plan. Whether additional nutrients are needed depends on the starting medium, plant demand and use. “Water only forever” is therefore not a universal promise.

What are its benefits and limitations?

Organic matter and biological activity can support soil structure and nutrient availability. Under suitable conditions, a well-maintained medium can be reused. This can save material and help you get to know your soil.

Living Soil still requires care. Small containers provide less buffering capacity than larger soil volumes. Drought, waterlogging or an unsuitable nutrient supply are not solved by a single product. The term alone also cannot guarantee higher yields or stronger aromas. Our guide to Living Soil container size helps with planning.

Buy a ready-made mix or build your own?

A ready-made growing-medium mix can make starting easier. Check whether it is actually sold as finished soil, which nutrients it already contains and which additions are recommended. A fertilizer or microbial additive is not finished soil.

When building your own, choose starting materials and additions to suit your plans. Our tutorial on building Living Soil explains the differences between pots and beds. Specific mixture options are in the separate soil-mixing guide. You can learn the basics here without working through several recipes first.

Our experience and the role of our products

We have tried hundreds of different Living Soil mixes and substrate combinations. These experiences inform the development of our products. We want each product to have a clear purpose.

Our Organic Line includes products for different roles within the system. Living Soil Base is an organo-mineral base fertilizer, not a ready-made soil. MicroBio+ supports the microbial side and replaces neither a suitable substrate structure nor a nutrient source. Useful additions depend on the existing medium and its nutrient supply.

Your next steps in GrowLab

• Keep water and air in balance: Watering Living Soil explains the general watering decision. The companion article on watering in fabric pots covers the specific characteristics of that container.
• Protect the surface: Learn what mulch does and how a cover crop differs.
• Use your medium over time: Our No-Till guide covers reuse and the limits of the system.

Start with the basics, then open the tutorial that answers your particular question. You do not need every additive or every method at once.