What Is Compost Tea?

Compost tea is a liquid made by steeping compost or worm castings in water to extract beneficial microbes and nutrients for plants and soil.

WHAT IS COMPOST TEA

Compost tea is created by mixing compost, worm castings, or other organic inputs with water and allowing them to steep for a period of time. Some growers aerate the mixture to encourage microbial growth.

The goal is to deliver beneficial bacteria, fungi, and nutrients directly to the soil or plant surface.

HOW IT’S USED

Compost tea is commonly used:
– To boost soil biology
– After top dressing to activate amendments
– During vegetative and flower stages
– As a soil drench or foliar spray

It is often used in living soil and organic systems.

WHY IT MATTERS

Compost tea can:
– Increase microbial activity
– Improve nutrient availability
– Support root health
– Help plants recover from stress

When used correctly, it complements dry amendments and living soil systems.

LIMITATIONS & NOTES

Compost tea is not a replacement for proper soil nutrition. Poorly made tea can be ineffective or harmful, and cleanliness is important to avoid unwanted pathogens. Results depend heavily on ingredients and brewing method.