Do tree roots grow in sewer pipes during winter?

As we transition into another Sydney winter, my thirst for knowledge about trees and their roots and how and why they grow in sewer pipes and whether they are as active as during the warmer months led me to here.

This magnificent display of London Plane trees in Woollahra was just starting to move into autumn mode and we were called to a blocked drain in the street. The blocked drain was caused by tree roots.

Tree roots generally grow more slowly or become dormant during the winter months. The growth of tree roots in drains is influenced by several factors, including temperature, soil conditions, and moisture availability. In colder climates, where winters are harsh and the ground freezes, root growth is typically limited or even halted.

During winter, the soil temperature drops, making it less favorable for root growth. Additionally, the availability of water is often reduced due to freezing or low precipitation levels. These conditions make it difficult for roots to actively grow and expand. Our seasons are changing but traditionally winter in Sydney is our dry season.

However, it’s important to note that tree roots can still function and absorb some nutrients from sewer pipes and drains during winter and continue to cause blockages albeit at a slower rate. They continue to provide support and anchorage for the tree, even if growth is minimal. I believe they are preparing for the spring while they’re hibernating.

And that’s why we still have to attend to tree root drain blockages during winter.

Root growth typically resumes in the spring when temperatures rise, and the soil becomes more conducive to growth. As the weather warms and soil conditions improve, tree roots become more active, allowing for increased growth and development.

Now if you live north of the NSW and Queensland border this theory would probably be tested because it doesn’t cool down as much as the southern states.

If you live in Australia’s sunny north and have a tale to tell about your blocked drains and tree roots, you can tell it here.