Hi @Tina3,
Many thanks for your question and welcome to the Bunnings Workshop community, it is fantastic to have you join us.
What you are seeing is mycelium, which is always present in rich organic soils. It is actually an indicator of healthy soil and can be quite beneficial.
Mycelium in soil helps break down organic matter, improving nutrient availability and soil structure. It also supports plant growth, increases biodiversity, and helps clean the environment by storing carbon and breaking down pollutants.
There is some interesting research to suggest that in nature, mycelium acts as a conduit for information on potential threats to ecosystems and can transfer nutrients such as nitrogen and carbon between plants.
If you are interested, you might like to Google "The Wood Wide Web" for some further information.
Let me know if you have any further questions.
Jacob
